The precautions to be taken one month after the patient’s abortion are as follows: First, observe whether the patient’s menstruation can come on time and whether the amount of menstruation is normal. If the patient can not have menstruation for a long time after the abortion, or the amount of menstruation after menstruation is very small accompanied by abdominal pain, to exclude the re-pregnancy. Consider the possibility that the patient may have endometrial damage, or endometrial-cervical canal adhesions. Need to do further hysteroscopy and other examinations to clarify the diagnosis, and systematic treatment. Secondly, patients should pay attention to contraception and try not to have an unwanted pregnancy if there is no requirement for pregnancy. If there is a request for pregnancy, it is recommended that the patient get pregnant after 3-6 months, and if the recovery is good, the patient can prepare for pregnancy after 3 months of abortion. If the patient’s menstrual recovery after abortion is not ideal, you can first adjust, 6 months before preparing for pregnancy.