Doctors do not always know what causes uveitis. You are more likely to get uveitis if you have or have had:
- infections such as shingles virus, herpes simplex virus, syphilis, Lyme disease, and parasites such as toxoplasmosis.
- a systemic inflammatory disease such as inflammatory bowel disease (IBS), rheumatoid arthritis or lupus
- an eye injury
Smoking (cigarettes, cigars or pipes) also increases your risk of getting uveitis.