Medical anthropology

In short

Medical anthropology studies health, illness, healing and the body as cultural, ecological and political facts, not only biological ones. It asks how a community explains sickness, whom it consults, what it eats, and how poverty, forest loss and distance from a health centre produce disease patterns. In India it is the applied core of tribal health work — sickle cell disease, malaria, malnutrition, maternal mortality and alcohol use among Scheduled Tribes, who are 10.45 crore people (8.6% of the population, Census 2011) including 75 Particularly Vulnerable Tribal Groups. It is examined in BA/B.Sc and MA Anthropology papers, in UGC-NET Anthropology (Unit on medical anthropology and applied anthropology) and in UPSC Anthropology Paper II, and is used by NHM tribal health cells, ICMR institutes, public health NGOs and social-behaviour-change teams of UNICEF, WHO and the Ministry of Tribal Affairs.

Explained

1. Definition, scope and growth of the discipline

• Definition: the biocultural study of human health and disease, healing systems and the social organisation of medicine; it joins biological anthropology (genetics, nutrition, adaptation) with social anthropology (belief, kinship, power).
• Four classic branches: (i) *medical ecology / biocultural* — disease as an outcome of population–environment adaptation; (ii) *ethnomedicine* — indigenous theories and practice of healing; (iii) *cultural / interpretive* — meaning of illness to the sufferer; (iv) *critical medical anthropology (CMA)* — political economy of health, class and power.
• Historical landmarks: W. H. R. Rivers, *Medicine, Magic and Religion* (1924), argued that "primitive" medicine is rational within its own premises; F. E. Clements (1932) classified non-Western disease theories; Erwin H. Ackerknecht founded comparative medical history and, with Steven Polgar, brought the field into anthropology proper in the 1950s–60s; Charles Leslie, *Asian Medical Systems* (1976), established medical pluralism; Arthur Kleinman, *Patients and Healers in the Context of Culture* (1980), gave explanatory models; Paul Farmer added structural violence; Merrill Singer added syndemics.
• India: ICMR-National Institute of Research in Tribal Health (NIRTH), Jabalpur; the Anthropological Survey of India's human-biology and health surveys; Salil Basu's tribal health studies at NIHFW; P. C. Joshi's medical anthropology at Delhi University; the Xaxa Committee (2014) and the MoHFW–MoTA Expert Committee on Tribal Health (chair Abhay Bang), report 2018, *Tribal Health in India: Bridging the Gap and a Roadmap for the Future*.

2. Disease, illness, sickness and the explanatory model

• Disease: the biomedical abnormality in organ or tissue — the clinician's object. Illness: the patient's and family's lived experience, naming and meaning. Sickness: the socially recognised status and its obligations.
• Explanatory model (EM, Kleinman): the notions each party holds about an episode — aetiology, time and mode of onset, pathophysiology, course and severity, and appropriate treatment. Patient, family, folk healer and doctor each hold one; clinical failure usually comes from the gap between them.
• Kleinman's eight questions (used in cultural formulation and in NHM counselling training): What do you call it? What do you think caused it? Why did it start when it did? What does it do to you? How severe is it? What do you fear most? What treatment should you have? What results do you hope for?
• Illness narrative: the story the sufferer tells; the unit of analysis in interpretive medical anthropology.
• Sick role (Parsons, 1951): sickness is deviance; the sick person is exempted from normal roles and is not blamed, but must want to get well and must seek competent help. Illness behaviour (Mechanic): how symptoms are perceived, evaluated and acted upon. Suchman's five stages: symptom experience → assumption of the sick role → medical care contact → dependent-patient role → recovery/rehabilitation. Lay referral system (Freidson): advice from kin and neighbours decides where a tribal patient goes first.
• Health-seeking behaviour: in tribal India typically home remedy → *dai*/elder → folk healer (*ojha*, *gunia*, *bhagat*, *vaidya*, *bhopa*) → RMP/quack → PHC/CHC → district hospital; distance, wage loss, language and staff attitude, not "superstition", are the main brakes.
• Three sectors of any health care system (Kleinman): popular (household, self-care — where most illness is handled), folk (non-professional specialist healers), professional (legally sanctioned biomedicine and institutionalised AYUSH).

3. Theories of disease causation and ethnomedicine

• Rivers' three-fold scheme: magical, religious and naturalistic causation; each with its own rational therapeutics.
• Clements' five categories: sorcery, breach of taboo, intrusion of a disease-object, intrusion of a spirit, soul loss.
• Foster and Anderson (1978): personalistic aetiology — illness is sent by an agent (witch, sorcerer, ancestor, deity, evil eye/*nazar*); diagnosis = "who", treatment = divination, propitiation, exorcism. Naturalistic aetiology — impersonal imbalance (humours, hot–cold, wind, cold water, bad food); diagnosis = "what", treatment = restoring balance. Most Indian tribal systems combine both: chronic or unexplained illness is read personalistically, everyday complaints naturalistically.
• Indian naturalistic systems: Ayurveda's *tridosha* (vata, pitta, kapha) and *dhatu*/*agni*; Unani's four humours; Siddha; Tibetan *Sowa-Rigpa* (recognised by the Government of India); the folk hot–cold food classification that governs diet in pregnancy, after delivery and in fever (the reason colostrum is often discarded and a lactating mother is denied "cold" foods).
• Folk categories in tribal India: deities of epidemic disease (Sitala/*mata* for measles-smallpox-type eruptive fever), *nazar*, *bhoot-pret* and possession, loss of vital force; healing by *jhar-phoonk*, herbal decoctions, branding/cauterisation, bone-setting and midwifery.
• Ethnobotany and ethnopharmacology: systematic recording of medicinal plants and dosage from healers; validated leads include *Artemisia*, *Rauvolfia serpentina* (reserpine), *Commiphora mukul*, *Curcuma longa*. Collection of such knowledge is regulated — see §5.
• Medical pluralism: the coexistence and simultaneous use of several systems; patients are not loyal to one. Syncretism — folk healers now inject antibiotics and steroids; *dais* use oxytocin. Hierarchy of resort — the order in which systems are tried, which changes with cost, severity and chronicity.
• Culture-bound syndromes / cultural concepts of distress (DSM-5): patterned distress recognised locally — in India *dhat* syndrome (semen-loss anxiety, listed in DSM-5's glossary), possession states, *suchi-bai* (compulsive washing, Bengal), ascetic syndrome, *gilhari* syndrome (Rajasthan). Somatisation — psychological distress expressed as bodily complaint, very common in Indian primary care.
• Critical approaches: medicalisation (Zola, Illich) — ordinary life defined as medical; biomedical hegemony; structural violence (Farmer) — social arrangements that put the poor in harm's way; syndemic (Singer) — two or more epidemics interacting in a deprived population (TB + undernutrition + alcohol + silicosis in mining tribal belts); the three bodies (Scheper-Hughes and Lock) — individual, social and body politic; local biologies (Lock) — biology itself varies with environment and history.

4. Health profile of tribal India (the applied field)

• Ecology and genetics: malaria hyperendemic in forested tracts (*P. falciparum*, *Anopheles fluviatilis/dirus*); high frequencies of sickle cell gene (HbS) in central Indian tribes — Gond, Bhil, Baiga, Pardhan, Madia, with AS carrier rates of roughly 10–30% in some groups — plus β-thalassaemia, G6PD deficiency and HbE in the north-east; these haemoglobinopathies persist as a balanced polymorphism because heterozygotes resist falciparum malaria (classic biocultural adaptation).
• Nutrition: chronic energy deficiency in adults; high stunting and underweight in ST children — NFHS-5 (2019–21) shows ST children worse than the national average (stunting about 41% against 35.5%); anaemia above 60% in ST women; vitamin A and iodine deficiency; lathyrism from *khesari dal* and fluorosis in parts of central and peninsular India.
• Communicable disease: tuberculosis, malaria, acute respiratory infection, diarrhoea, hepatitis B, soil-transmitted helminths, scrub typhus; yaws, once a tribal disease, was eliminated — India was declared yaws-free in 2016; guinea worm eradicated (certified 2000).
• Maternal and child health: lower institutional delivery and ANC coverage than the national average, home deliveries by *dai*, early marriage in some groups, unsafe cord care; higher infant and under-five mortality.
• Emerging burden: hypertension and diabetes rising with settlement and diet change (epidemiological transition, Omran — from pestilence and famine → receding pandemics → degenerative and man-made disease, happening unevenly in India as a *double burden*); alcohol and tobacco use; mental health and suicide; injuries, snake and animal bites; occupational silicosis and asbestosis among migrant tribal labour; displacement-related distress.
• Service-side gaps named by the 2018 Expert Committee: shortfall of sub-centres, PHCs and CHCs against tribal norms, vacant specialist posts, poor referral transport, and the recommendation of a Tribal Health Index, a tribal health action plan and heavy use of local community health workers.

5. Indian policy, programmes and law

• Constitutional and institutional base: Articles 46 and 47 (duty to promote health and the interests of SCs/STs), Fifth and Sixth Schedules, Tribal Sub-Plan; PESA 1996 and the Forest Rights Act 2006 (community rights over non-timber forest produce, including medicinal plants).
• Service norms: in tribal and hilly areas a sub-centre per 3,000 population, PHC per 20,000 and CHC per 80,000 — against 5,000 / 30,000 / 1,20,000 in the plains; Indian Public Health Standards define staffing and drugs.
• Programmes: National Health Mission with state tribal health cells; Ayushman Bharat — Ayushman Arogya Mandirs (the renamed health and wellness centres) and PM-JAY with a ₹5 lakh per family per year hospitalisation cover, extended to all persons aged 70 and above since October 2024; National Sickle Cell Anaemia Elimination Mission launched 1 July 2023 at Shahdol, screening people aged 0–40 in tribal-majority districts with elimination targeted by 2047; National Vector Borne Disease Control Programme; National TB Elimination Programme with Ni-kshay Poshan support; POSHAN 2.0, Anaemia Mukt Bharat, ICDS/Anganwadi; Mobile Medical Units; Anamaya, the Tribal Health Collaborative under the Ministry of Tribal Affairs.
• Community health worker models studied by anthropologists: Chhattisgarh's Mitanin programme (precursor of the national ASHA), SEARCH Gadchiroli's home-based neonatal care (Abhay and Rani Bang), Jan Swasthya Sahyog, Ganiyari, and Chhattisgarh's *haat bazaar* clinics.
• Law to know: National Medical Commission Act 2019; National Commission for Indian System of Medicine Act 2020 and National Commission for Homoeopathy Act 2020 (Ministry of AYUSH); Drugs and Cosmetics Act 1940 (a consolidating Bill has been proposed but the 1940 Act governs); Drugs and Magic Remedies (Objectionable Advertisements) Act 1954 (bars advertising cures for listed conditions); Clinical Establishments (Registration and Regulation) Act 2010; Mental Healthcare Act 2017 (rights-based, decriminalised suicide attempt); PCPNDT Act 1994; Epidemic Diseases Act 1897 as amended in 2020; Biological Diversity Act 2002 as amended in 2023 with the National Biodiversity Authority and Biodiversity Management Committees — access and benefit sharing for traditional medicinal knowledge; Traditional Knowledge Digital Library as defensive protection against patents.
• Research ethics: ICMR *National Ethical Guidelines for Biomedical and Health Research Involving Human Participants* (2017) — Institutional Ethics Committee clearance, individual and community consent, gatekeeper permission in Scheduled Areas, no benefit-less sample collection, feedback of results to the community; Article 338A/NCST oversight.

6. Methods in applied medical anthropology

• Ethnography: long-term participant observation, key informants (healer, *dai*, ASHA), case histories, illness narratives, free-listing and pile-sorting of illness terms, folk taxonomies, genealogies for genetic traits.
• Rapid and mixed methods: KAP (knowledge–attitude–practice) surveys, focus group discussions, PRA/participatory mapping of water points and health facilities, 24-hour dietary recall and food-frequency questionnaires, anthropometry (height, weight, MUAC, skinfolds), haemoglobin and sickle solubility/HPLC screening, verbal autopsy for cause of death where deaths occur at home.
• Epidemiological linkage: prevalence and incidence estimation, case-control and cohort designs, cluster sampling of villages.
• Uses of the findings: culturally congruent IEC/BCC material in the tribal language, training *dais* and healers as referral partners rather than rivals, re-timing of outreach to the agricultural calendar and *haat* day, designing nutrition advice around locally available forest foods, and evaluating why a scheme is not used.
• Limitations: small samples and no statistical representativeness, observer effect, long time-frame, difficulty quantifying meaning, risk of romanticising a harmful practice or of the reverse — dismissing local knowledge; ethical hazard of genetic sampling in identifiable small populations.

Key points

• Medical anthropology – biocultural and political study of health, illness and healing systems.
• Disease / illness / sickness – biological abnormality / lived experience / social status.
• Explanatory model – each party's account of cause, course and cure; the clinician–patient gap explains non-compliance.
• Kleinman's three sectors – popular (household), folk (healer), professional (biomedicine, institutional AYUSH).
• Personalistic vs naturalistic – Foster and Anderson's two aetiologies; Indian tribal systems use both.
• Clements' five causes – sorcery, taboo breach, object intrusion, spirit intrusion, soul loss.
• Rivers (1924) – indigenous medicine is rational within its own cosmology.
• Medical pluralism – simultaneous use of many systems; "hierarchy of resort" is the order tried.
• Culture-bound syndrome – locally patterned distress, e.g. *dhat* syndrome, possession, *suchi-bai*.
• Medical ecology – disease as a failure of population–environment adaptation (Alland).
• Balanced polymorphism – HbS and G6PD deficiency persist because carriers resist falciparum malaria.
• Critical medical anthropology – health inequality produced by class, caste and the political economy of medicine.
• Structural violence (Farmer) and syndemic (Singer) – harm from social arrangements; interacting epidemics.
• Epidemiological transition – shift from infection to chronic disease; India carries a double burden.
• Expert Committee on Tribal Health 2018 (Bang) – MoHFW–MoTA report; priority problems and a Tribal Health Index.
• Tribal service norms – SC/PHC/CHC per 3,000/20,000/80,000 in tribal and hilly areas.
• NSCAEM 2023 – sickle cell screening of ages 0–40 in tribal districts, elimination target 2047.
• Biological Diversity Act 2002 (amended 2023) – access and benefit sharing for traditional medicinal knowledge.

Formulas and examples

Example 1 — sickle cell gene frequency in a Gond block. 4,000 people screened: 480 sickle cell trait (AS), 24 disease (SS), 3,496 normal (AA).

• Total alleles = 2 × 4,000 = 8,000. HbS alleles = (2 × 24) + 480 = 528.
• q = 528 ÷ 8,000 = 0.066; p = 1 − 0.066 = 0.934.
• Expected AA = p²N = 0.872356 × 4,000 = 3,489.4; AS = 2pqN = 0.123288 × 4,000 = 493.2; SS = q²N = 0.004356 × 4,000 = 17.4 (total 4,000 ✓).
• Observed SS (24) exceeds expected (17.4) — consistent with consanguinity or with sick children being brought forward for screening.
• Expected SS births if mating is random = q² = 0.436%, i.e. about 4.4 per 1,000 births; in a block with 1,200 births a year ≈ 5 affected births per year — the number that justifies counselling and pre-marital/antenatal screening.

Example 2 — mortality indicators for a tribal block. 2,400 live births in the year, 108 infant deaths (of which 72 in the first 28 days), 2 maternal deaths, 240 total deaths in a population of 30,000.

• IMR = (108 ÷ 2,400) × 1,000 = 45 per 1,000 live births; NMR = (72 ÷ 2,400) × 1,000 = 30.
• MMR = (2 ÷ 2,400) × 1,00,000 = 83 per 1,00,000 live births.
• CDR = (240 ÷ 30,000) × 1,000 = 8 per 1,000.
• Comparison: NFHS-5 puts India's IMR at 35.2; SRS puts MMR at 97 for 2018–20 and has reported further decline since. The block's IMR is roughly 28% above the national figure — the gap the 2018 Expert Committee was set up to close.

Example 3 — prevalence versus incidence of TB. A village of 2,000; a survey finds 60 people on TB treatment on survey day; over the next year 14 new cases arise among the 1,940 initially free of disease.

• Point prevalence = (60 ÷ 2,000) × 1,00,000 = 3,000 per 1,00,000.
• Incidence ≈ (14 ÷ 1,940) × 1,000 = 7.2 per 1,000 person-years = 720 per 1,00,000 per year.
• WHO's estimate for India as a whole was about 195 per 1,00,000 per year (2023), so this village's incidence is roughly 3.7 times the national rate — a finding that would trigger active case finding and a nutrition link (TB + undernutrition + alcohol as a syndemic).

Example 4 — case-control study of bed-net use and malaria. 120 cases, 30 of whom used an insecticidal net; 240 controls, 120 of whom used one.

• OR = (a × d) ÷ (b × c) = (30 × 120) ÷ (90 × 120) = 3,600 ÷ 10,800 = 0.33.
• Net users have one-third the odds of malaria — about 67% lower odds. The anthropological follow-up asks why 75% of cases did not use the net: heat inside, sleeping outdoors in the harvest season, nets used to fence vegetable patches.

Example 5 — adult nutritional status. A Baiga man weighs 48 kg and is 1.62 m tall.

• BMI = 48 ÷ (1.62)² = 48 ÷ 2.6244 = 18.3 kg/m² → CED grade I (17.0–18.49).
• If 42 of 150 adults screened fall below 18.5, prevalence of CED = (42 ÷ 150) × 100 = 28% — above the WHO "serious" threshold for a population, warranting a community nutrition response, not individual advice.

Where it is used

• Public health programmes: NHM tribal health cells, NSCAEM screening and counselling, NVBDCP malaria behaviour-change work, NTEP adherence studies — roles such as social scientist, BCC/IEC specialist, M&E officer.
• Research institutions: ICMR-NIRTH Jabalpur, ICMR-NIE, NIMR, NIHFW, Anthropological Survey of India, PHFI/IIPH, TISS and university departments — research associate, field investigator, qualitative lead on NFHS-type and operational research.
• NGOs and foundations: SEARCH Gadchiroli, Jan Swasthya Sahyog Ganiyari, Ekjut (Jharkhand–Odisha participatory women's groups), SEWA Rural, Piramal/Anamaya, Azim Premji Foundation; UNICEF, WHO-India, Bill and Melinda Gates Foundation consultancies.
• Clinical and hospital practice: cultural formulation in psychiatry (NIMHANS), genetic counselling in sickle cell and thalassaemia clinics, palliative care, HIV and TB counselling, hospital ethnography and patient-experience studies.
• Industry and CSR: nutrition and sanitation product design and acceptability testing, FMCG and pharmaceutical social-behaviour research, CSR health projects of mining and steel companies in Scheduled Areas, insurance utilisation studies for PM-JAY.
• AYUSH and biodiversity: documentation of local health traditions, Biodiversity Management Committee People's Biodiversity Registers, ethnopharmacology and access-and-benefit-sharing negotiation under the Biological Diversity Act.

Interview questions

• Q: What is the difference between disease, illness and sickness? A: Disease is the biomedical pathology, illness is the patient's experience and interpretation, and sickness is the socially recognised role and its rights and duties.
• Q: What is an explanatory model and why does it matter in a tribal PHC? A: It is each party's account of cause, course and cure; eliciting the patient's model reveals why a mother stops TB drugs after symptoms ease or boils colostrum away, which no prescription alone will fix.
• Q: Distinguish personalistic and naturalistic aetiology with Indian examples. A: Personalistic blames an agent — *nazar*, a witch, an offended deity — and is treated by *jhar-phoonk* or propitiation; naturalistic blames imbalance — hot–cold food, *tridosha* — and is treated by diet and herbs. Most communities use both depending on the illness.
• Q: Why is the sickle cell gene common in central Indian tribes? A: Balanced polymorphism — AS heterozygotes have an advantage against falciparum malaria, so the allele is maintained despite the high mortality of SS homozygotes.
• Q: What is medical pluralism, and is it a problem? A: Simultaneous use of multiple healing systems; it is a resource if biomedicine collaborates with folk practitioners, and a hazard when it delays referral in obstetric or snakebite emergencies.
• Q: What does critical medical anthropology add to medical ecology? A: Ecology explains adaptation to the environment; CMA shows that the environment itself — displacement, landlessness, mining, unequal health spending — is produced by power, so inequality rather than culture is the first cause.
• Q: Give an Indian example of a syndemic. A: Tuberculosis, undernutrition, alcohol use and silicosis reinforcing one another among migrant tribal labourers in mining and stone-crushing belts; treating any one in isolation underperforms.
• Q: What is a culture-bound syndrome? Name an Indian one. A: A pattern of distress recognised and shaped by a particular culture — *dhat* syndrome, semen-loss anxiety with fatigue and somatic complaints, listed in the DSM-5 glossary of cultural concepts of distress.
• Q: What population norms apply to health facilities in tribal areas? A: A sub-centre per 3,000, PHC per 20,000 and CHC per 80,000 people, against 5,000, 30,000 and 1,20,000 in non-tribal areas.
• Q: Which committee reported on tribal health, and what did it recommend? A: The MoHFW–MoTA Expert Committee on Tribal Health chaired by Abhay Bang, which reported in 2018 naming priority health problems, the service gap, and remedies including a Tribal Health Index, a tribal health action plan and reliance on local community health workers.
• Q: How would you study why institutional delivery is low in a block without assuming "lack of awareness"? A: Combine facility data with illness-narrative interviews, a lay-referral map, a transport and wage-loss cost estimate, observation at the PHC on staff behaviour and language, and FGDs with *dais*; then test which constraint explains the pattern.
• Q: What are your ethical obligations when collecting blood samples in a PVTG village? A: Ethics committee clearance under the ICMR 2017 guidelines, individual and community consent in the local language with gatekeeper permission, no uncompensated sampling, return of results and treatment linkage, and protection of group identity in publication; traditional-knowledge collection also attracts the Biological Diversity Act's benefit-sharing rules.

Common mistakes

• Treating folk medicine as mere superstition, or the opposite — romanticising it and ignoring real harms such as cord cutting with an unsterile blade or delayed referral in obstetric emergency.
• Confusing prevalence with incidence, or quoting a rate without its denominator and time period.
• Writing "MMR per 1,000" — maternal mortality ratio is per 1,00,000 live births; IMR and NMR are per 1,000 live births.
• Applying Hardy–Weinberg to a screening sample that was not random (clinic-based samples over-represent SS cases) and calling the excess "non-random mating".
• Using the international BMI cut-offs for Indian adults, or reporting a single person's BMI as a community nutritional status.
• Mixing up the schools — attributing explanatory models to Foster and Anderson, personalistic/naturalistic to Kleinman, or structural violence to Singer instead of Farmer.
• Describing tribal health as only an infectious-disease and malnutrition story when hypertension, diabetes, injury, alcohol and mental illness are now a documented second burden.

Related topics

Tribal communities of India and tribal policy · Rural development concepts and approaches · Human genetics and population genetics · Nutritional anthropology and anthropometry · Demographic anthropology and vital statistics · Ethnobotany and traditional knowledge protection