Artificial abortion and drug abortion have damage to the body, artificial abortion damage is relatively large, but if the drug abortion fails, or after the drug abortion review gynecological ultrasound has intrauterine residues, the risk of drug abortion at this time is the same as the risk of abortion. The difference between the two is as follows: 1, abortion is a surgical instrument through the uterine cavity operation, the pregnancy tissue scraped or sucked out of the uterus. Abortion is a surgical operation that causes relatively more damage to the human body. One week after the operation to review the ultrasound, if there is intrauterine residue, may also carry out a second clearance; 2, drug abortion is through the drug mifepristone, misoprostol effect on the human body, so that the pregnancy tissue discharged out of the body. The role of drug abortion is more moderate, the damage to the human body is relatively light. If there are no contraindications to medication abortion within 49 days of pregnancy, it is recommended that medication abortion be preferred, which is relatively safe.