Causes of episcleritis (redness in part of eye)?

Many things.: The disease is often from association with other diseases like wegener's granulomatosis or rheumatoid arthritis. It can also be from disorders of menstruation. For this reason, scleritis can occur in young women. It can also be the first symptom of connective tissue diseases like scleroderma. Episcleritis or inflammation of the episclera, is less serious and rarely becomes scleritis.