Menstruation clean a few days can be on annulus

Generally speaking, the ring should be 3~4 days after menstruation is clean. If the ring is 7 days after menstruation is clean, it is not only easy to cause bleeding, but also may cause pregnancy with rings. In addition, the ring may show the following adverse reactions: 1. Bleeding, due to stimulation of the endometrium after the ring, causing local coagulation disorders, resulting in vaginal bleeding. 2. Lumbar soreness, the contraceptive ring from the uterus will stimulate the uterus, so it will cause uterine contractions, showing lower abdominal pain and low back pain. once the above symptoms are shown, don't worry too much, generally it will disappear after a period of time.