Conjunctivitis occurs because of the following reasons –
- Virus – Often associated with cold or sore throat
- Bacteria- Poor hand washing and handling infected clothes promotes these microorganisms
- Allergens - Pollens from trees, dust mites, smoke and dander from animals
- Chemicalized cosmetics
- Systematic diseases - people suffering from diseases like Rheumatoid arthritis, Gout, Crohn's disease have a greater possibility of acquiring conjunctivitis.
- Foreign objects