Withdrawal bleeding often occurs after taking oral emergency contraceptives, progesterone and other drugs, bleeding time is usually within 1 week after stopping the pill, 15 days of non-stop bleeding, there may be menstrual disorders, pregnancy, endometrial hyperplasia and other reasons, should promptly go to the hospital for treatment. Common causes and treatment 1, menstrual disorders: due to the inhibition of normal ovulation, resulting in a longer bleeding time or more blood, should follow medical advice oral estrogen and progestin treatment, such as dydrogesterone, estradiol valerate, etc.; 2, pregnancy: after taking oral emergency contraceptives appear more than withdrawal bleeding, accompanied by mild breast distension, nipple pain and nausea, vomiting and other symptoms, should go to the hospital to do ultrasound and pregnancy test to confirm the diagnosis . HCG and progesterone level measurement should be done to decide whether to continue pregnancy after considering many aspects; 3. Endometrial hyperplasia: there can be abnormal uterine bleeding, long bleeding time, lower abdominal pain and other symptoms, and the diagnosis is confirmed by vaginal ultrasound and histopathological examination, and drug or surgical treatment can be chosen. Precautions For patients with heavy bleeding may have anemia, they should eat more fresh vegetables and fruits, appropriate protein supplement, more iron-rich foods, such as animal liver, lean meat, fungus, spinach, etc. They can also improve anemia by appropriate supplementation of Agaricus.