When there is sudden vaginal bleeding and slight abdominal pain 14 days after abortion, it may be caused by residual pregnancy products, withdrawal bleeding and ovulation bleeding. 1. Pregnancy product residue: when abortion is incomplete, the residual tissue is not completely stripped from the uterine cavity. The pregnancy products remaining in the uterine cavity still have the ability to erode the uterine muscle wall, resulting in poor repair of the uterine lining, sudden vaginal bleeding and abdominal pain. 2. Withdrawal bleeding: After the abortion, the doctor will give the patient oral progesterone, which can repair the uterine lining. After stopping the medicine for about 1 week, the level of progesterone in the body will drop, resulting in the shedding of the uterine lining and withdrawal bleeding, and occasionally there will be abdominal pain. Generally speaking, it is a normal reaction after stopping the medicine, pay more attention to rest and regular checkups. 3. Ovulation bleeding: some abortion patients recover quickly after the operation, the endometrium quickly return to normal physiological function. When they happen to be in the ovulation period, some patients may suddenly experience blood discharge and mild abdominal pain, but the amount of bleeding during ovulation is small and lasts for a short period of time. If the bleeding is heavy, lasts for a long time or is accompanied by obvious abdominal pain, it is recommended to consult a doctor in time, follow the doctor’s instructions to choose the appropriate examination, clarify the cause with the doctor’s help, and carry out targeted treatment or therapy.