The patient’s abortion 42 days without menstrual pain in the small abdomen, may be the abortion after the hormone level has not returned to normal, will cause irregular periods, small abdominal pain and other performance, if the abdominal pain is not serious and no other symptoms, you can first observe. If the symptoms are more serious, you need to promptly seek medical examination to clarify the cause of the corresponding treatment. 1, pelvic inflammatory disease: after abortion, pelvic inflammatory disease patients can also appear menstrual disorders, abdominal pain, should be actively anti-inflammatory treatment under the guidance of the doctor; 2, intrauterine inflammatory disease: after abortion, if patients have intrauterine inflammatory disease, can also appear menstrual disorders, no menstruation and lower abdominal pain and other symptoms, should follow medical advice for anti-infection 3. Re-pregnancy: If you have sex after abortion and do not have strict contraception, there is a possibility that you will get pregnant again and therefore do not have your period; at the same time, because the uterus and hormone levels have not fully recovered, the pregnancy is prone to pre-eclampsia or ectopic pregnancy at this time, which makes the patient feel abdominal pain. You can use a pregnancy test to check whether you are pregnant or not, or you can go to the hospital to check the blood HCG and abdominal ultrasound to clearly determine whether you are pregnant or not, and consider whether to continue the pregnancy according to the doctor’s prescription. After abortion, it is necessary to pay attention to avoid overexertion, avoid mental stress, do not recommend strenuous exercise, if there are no other abnormalities, when abdominal pain occurs, you can use a hot towel to warm the lower abdomen to relieve the pain.