Abdominal pain after taking emergency contraceptive pills may be caused by gastrointestinal reaction, endometrial shedding or mental factors. If the pain is more intense, you can go to the hospital to exclude other disease conditions not caused by the pill, and treat the symptoms after clarifying the cause. Common causes and treatments: 1, mental factors: women taking emergency contraceptives are prone to a certain amount of anxiety or nervousness, which can cause abdominal pain. Therefore, do not be overly nervous after taking emergency contraceptive pills, pay attention to rest and relaxation to avoid excessive psychological pressure and aggravate the discomfort; 2, gastrointestinal reactions: large doses of hormones contained in emergency contraceptive pills can cause some stimulation of the gastrointestinal tract, and symptoms such as loss of appetite, nausea, vomiting and abdominal pain can be applied under the guidance of a doctor to protect the gastric mucosa and relieve discomfort; 3 The endometrial changes: the estrogen and progesterone in emergency contraceptive pills will prompt the endometrial thickening, contraction as well as shedding, which will cause abdominal pain in the process, and the related symptoms will disappear gradually after the drug is completely metabolized and discharged. If the amount of bleeding or bleeding lasts for a long time, it is necessary to seek medical attention to identify the cause and then deal with it; 4, other diseases: If the pain in the abdomen is more serious, it is recommended to go to the hospital to do ultrasound examination to see if there is pelvic inflammatory disease, adnexitis or appendicitis, etc., according to the cause, take targeted treatment. Note: Emergency contraceptive pills can cause greater harm to the body, can not be taken more than three times a year, there is no need for women to prepare for pregnancy can apply condoms for contraception.