In rare cases, an ovarian cyst may be cancerous (see Ovarian Cancer). Symptoms: Pain during intercourse and painful, heavy periods. If a cyst twists or ruptures, it causes stomach pain ...

A pilonidal cyst is considered a benign (usually harmless) condition. Rarely, it could lead to a serious infection or complication if not treated. The cysts also can recur, with the cyst coming back ...

Correspondence to Dr Anita Koushik, Department of Social and Preventive Medicine, Université de Montréal, Montreal, QC H3T 1J4, Canada; anita.koushik{at}umontreal.ca Objectives To investigate ...