After 11 days of menstruation, the abdomen is a little sore and then red, may be ovulation bleeding caused by the performance, but to exclude organic diseases caused by lesions performance. In the menstrual period 11 days may be in the ovulation period, usually there will be mature follicles discharge egg cells, follicular fluid flow into the pelvis may cause a little pain in the abdomen, the body’s hormone levels change significantly may cause withdrawal bleeding, may cause the menstrual period 11 days after the red. In addition, some female patients in the menstrual period 11 days after the abdomen is a little sore and then red, may be cervicitis, cervical polyps, cervical cancer and other organic diseases caused by lesions, such as discomfort, it is recommended to consult a doctor in a timely manner, the need for a clear identification with the ovulation bleeding, in order to avoid misunderstanding the condition.