1. Oral Cavity & Cx - High in South
CANCER
Occurrence
Stomach - High in Japan
Breast High in USA
Oral Cavity & Cx - High in South
East Asia

2. INDIA
Increasing
Increasing Ca
- One of 10 leading causes of death
Commonest ut. Ca Cx
- Poor Pre & Post natal case
Poor genital hygiene
Paan Chewing
- Tobacco related in both sexes
75% in mouth, Pharynx, Larynx
Oesophagus, Lung is only 15%

3. Tobacco - Commonest - Lung - 10 fold higher
Aetiology
Multifactorial
Tobacco - Commonest - Lung - 10 fold higher 
Poly cyclic Oral acvity
hydro carbon Oesophagus
Cyclic N-nitrosamma Kidney
Bladder
Pancreas Cx
Stomach & Leukemia

4. Occupational CANCER Epithelioma of Scrotum - in Chimney sweeps
Bladder - Aniline dye workers - Benzidine
Bone Sarcoma - Dial Painters - Radium
Lung, Pl

5. Environmental Pollution
Urban air pollutant - Poly Clinic hydracarbon
Ionizing radiation - Very low - risk
Ultra violet radiation - comic rays
Diet & Alcohol -
Dietary fat - risk factor in breast & Colon Ca