What are the causes of ovarian cysts? – An ovarian cyst is quite common in India as nearly 25%of females suffer from ovarian cyst during their reproductive age group. It is a semi-solid sac in the ovaries. There are different causes of ovarian cysts, for instance, pelvic infection, pregnancy, and hormonal problems. These Ovarian Cysts are usually painless, and Symptomless. There are only signs of ovulation, in some conditions, they may need to be diagnosed and treated by removing them from the body.