The best time to have an abortion depends on the abortion method and the physical condition of the pregnant woman, and needs to be analyzed on a case-by-case basis. At present, there are two main methods of abortion in clinical practice, one is medication abortion and the other is surgical abortion. Generally speaking, the best time for medical abortion is within 7 weeks of pregnancy, and the earlier the better; the best time for surgical abortion is within 7-8 weeks of pregnancy. Although the method of medical abortion is easy and does not require uterine operation, patients with endocrine system diseases such as adrenal gland, diabetes, thyroid, or inflammation of the reproductive tract should not undergo medical abortion operation. When the pregnancy is large but within 10 weeks, abortion can be performed by anesthesia analgesia technique plus negative pressure aspiration and forceps scraping. In addition, it is important to take rest after abortion, not to overexert, pay attention to warmth and maintain local hygiene to avoid retrograde infection.