Polymenorrhea is a type of dysfunctional uterine bleeding in which the periods occurs at much shorter intervals, usually less than 21 days. In other words, it means that the time between the ovulation and the next menstrual cycle, called luteal phase is too short. Unlike spotting or metrorrhagia, in polymenorrhea the next period occurs shortly after the previous one. The condition can be bothersome if it the periods start occurring sooner than expecting, and on a regular basis. This can lead to complications during pregnancy or even infertility. There are various causes that lead to this condition as described below:Stress,Menopause,Endometriosis,Sexually Transmitted Diseases (STD),frequent ovulation due to hyperactivity of the anterior pituitary gland, constitutional disorders like malnutrition or psychological disturbances, and chronic pelvic inflammation.