Main Problems Under Domains of Community Medicine in India

1. Communicable Diseases

• Tuberculosis (TB): India accounts for ~27% of the global TB burden. Drug-resistant TB (MDR-TB, XDR-TB) is a growing crisis. TB-HIV co-infection compounds mortality.
• Malaria: Despite National Vector Borne Disease Control Programme efforts, malaria remains endemic - especially P. falciparum strains in tribal/forested areas.
• HIV/AIDS: India has ~2.4 million people living with HIV. Key populations (sex workers, injecting drug users) remain under-served.
• Neglected Tropical Diseases (NTDs): Kala-azar (visceral leishmaniasis), lymphatic filariasis, leprosy, and soil-transmitted helminths remain significant.
• Vaccine-preventable diseases: Measles outbreaks, incomplete immunization coverage in remote areas, and cold chain failures.
• Emerging/Re-emerging infections: Dengue, chikungunya, leptospirosis, and encephalitis syndromes (Japanese encephalitis, acute encephalitis syndrome in UP/Bihar).
• Antimicrobial Resistance (AMR): Irrational antibiotic use, OTC availability, and poor antibiotic stewardship are driving resistance at alarming rates.
• Park's Textbook of Preventive and Social Medicine, p. 34 - "Combat HIV/AIDS, malaria and other diseases"
• PMC - Public Health Challenges in India

2. Maternal and Child Health (MCH)

• Maternal mortality: India's MMR (~97/100,000 live births, 2018-20) remains high; major causes are hemorrhage, hypertensive disorders, sepsis, and unsafe abortions.
• Infant and under-5 mortality: IMR ~28/1,000; neonatal mortality accounts for ~50% of under-5 deaths. Prematurity, birth asphyxia, and sepsis are the top killers.
• Antenatal care gaps: Inadequate ANC coverage in rural/tribal populations; low institutional deliveries in some states.
• Child survival: Diarrheal diseases and acute respiratory infections (pneumonia) remain the leading causes of child deaths.
• Adolescent health: Early marriage, early pregnancy, anemia, and nutritional deficits in adolescent girls.

3. Nutrition and Food Security

• Protein-Energy Malnutrition (PEM): ~35% of under-5 children are stunted; ~20% are wasted (acute malnutrition). India has one of the highest burdens globally.
• Micronutrient deficiencies:
  • Iron deficiency anaemia affects >50% of women of reproductive age and children under 5 (NFHS-5 data).
  • Vitamin A deficiency - leading cause of preventable childhood blindness.
  • Iodine deficiency disorders (IDD) - goiter, cretinism, despite salt iodization.
  • Zinc deficiency - contributes to stunting and immune deficiency.
• Low birth weight (LBW): ~18-19% of newborns are LBW, driven by maternal malnutrition.
• Double burden of malnutrition: Simultaneously, obesity and overweight are rising, especially in urban India.
• Exclusive breastfeeding rates: Remain suboptimal despite government campaigns.

4. Non-Communicable Diseases (NCDs)

• Cardiovascular diseases (CVD): Coronary artery disease and stroke account for ~25-30% of all deaths. Indians develop CVD a decade earlier than Western populations.
• Diabetes mellitus: India is the "diabetes capital of the world" with ~80+ million diabetics. Type 2 diabetes is rising due to urbanization, sedentary lifestyle, and dietary changes.
• Hypertension: ~28-30% prevalence in adults; high rates of undetected and uncontrolled hypertension.
• Cancer: Oral cancer (tobacco-related), cervical cancer, breast cancer, lung cancer, and colorectal cancer are increasing. Late-stage diagnosis is common.
• Chronic Respiratory Diseases: COPD from biomass fuel smoke (indoor air pollution), tobacco use; asthma burden is rising.
• Mental disorders: See dedicated section below.
• Tobacco and alcohol: ~267 million tobacco users; rising alcohol use disorder, especially in youth.
• Obesity and unhealthy diets: Rising salt intake, insufficient physical activity, processed food consumption.

5. Environmental Health

• Safe water supply: A significant proportion of India's rural population still lacks access to safely managed drinking water. Fluorosis, arsenicosis, and nitrate toxicity from groundwater are regional problems.
• Sanitation: Open defecation was practiced by ~50% of India before Swachh Bharat Mission; though coverage improved, quality and sustainability of toilets remain issues.
• Air pollution: India has 21 of the world's 30 most polluted cities. Indoor air pollution from solid biomass fuels affects millions of rural households - linked to COPD, LBW, childhood pneumonia.
• Solid waste management: Improper disposal breeds disease vectors, contaminates water.
• Climate change: Increased heatwaves, floods, vector expansion (dengue, malaria to new geographies), and food insecurity.
• Pesticide poisoning: Highly prevalent in agricultural communities.

6. Mental Health

• India bears approximately 15% of the global mental health burden with an enormous treatment gap.
• Neuropsychiatric disorders: Depression, anxiety disorders, schizophrenia, and bipolar disorder have high prevalence.
• Treatment gap: Over 80% of people with mental illness in India receive no treatment (poor mental health infrastructure, 1 psychiatrist per ~400,000 population).
• Suicide: India accounts for ~17% of global suicides; rate is particularly high in farmers, youth, and women in South India.
• Substance use disorders: Alcohol dependence, opioid use (especially Punjab, Northeast India), and rising prescription drug misuse.
• Stigma: Social stigma is a major barrier to help-seeking.
• Child and adolescent mental health: Poorly addressed, with no school mental health infrastructure.

7. Occupational Health

• Agriculture workers: Pesticide poisoning, heat stress, musculoskeletal injuries.
• Mining and construction: Silicosis, coal workers' pneumoconiosis, lead toxicity, high accident rates.
• Child labour: Remains a problem in hazardous industries - carpet weaving, brick kilns, fireworks.
• Informal sector workers (unorganized): ~93% of India's workforce is in the informal sector with no occupational health protection, ESI coverage, or factory safety oversight.
• Urban occupational hazards: Traffic police exposed to lead; e-waste recycling workers (toxic metal exposure).

8. Population and Demography

• High population growth: India crossed 1.4 billion; states like UP, Bihar, Rajasthan have high total fertility rates (TFR > 2.5), straining health and education systems.
• Unmet need for family planning: Especially in rural women and adolescents; contraceptive choice is limited and male participation is low.
• Sex ratio: Son preference, sex-selective abortions, and child sex ratio skewed against girls in several states (Punjab, Haryana).
• Ageing population: Rapidly growing elderly (>60 years) population with inadequate geriatric health services.
• Urbanization: Rapid unplanned urbanization creates slum settlements with poor sanitation, overcrowding, and high communicable disease risk.

9. Health System and Infrastructure Problems

• Workforce shortage: India has only ~7 physicians per 10,000 population (global average 13.9) and ~17 nurses per 10,000 (global average 28.6). (PMC source)
• Rural-urban disparity: ~75% of health infrastructure and 80% of doctors are in urban areas serving only 31% of the population.
• Out-of-pocket expenditure: ~60% of total health expenditure is out-of-pocket, pushing millions into poverty each year.
• Primary healthcare gaps: Sub-centres and PHCs are understaffed, under-equipped, and struggle with supply chains for essential medicines.
• Health information system: Incomplete civil registration, disease surveillance, and vital statistics.
• Governance: Weak implementation of health policies, poor accountability mechanisms.

10. Social Determinants of Health

• Poverty and inequality: ~21% of Indians live below the poverty line; poverty directly drives malnutrition, poor sanitation, and inability to access healthcare.
• Literacy and education: Low female literacy (especially in BIMARU states) correlates with poor maternal and child health outcomes.
• Caste and tribal discrimination: Scheduled caste and tribe populations face structural barriers to health access.
• Gender inequality: Women's low autonomy, domestic violence, and restricted mobility affect health-seeking.
• Migration: Seasonal migrants miss immunizations, antenatal care, and TB treatment continuity.

Summary Table