Artificial insemination may cause bleeding injury, infection, lower abdominal pain, endometriosis and other complications. 1. Bleeding and damage: Since artificial insemination is to inject semen into the female reproductive tract through the instrument to make the egg and sperm unite, so the rough technique during the operation will cause some damages to the female such as cervical canal damage, endometrial bleeding and so on, and at the same time, the instrument may also have impact on the reproductive tract, resulting in bleeding and damage. 2. Infection: If the bleeding and damage mentioned above occurs, it may cause the woman to have an infection, and the semen used for insemination may bring in bacteria due to improper operation, leading to inflammation of the reproductive tract such as adnexitis and pelvic inflammatory disease. 3. Lower abdominal pain, endometriosis: too fast or too many injections during insemination may lead to cervical and uterine spasms or semen flowing into the abdominal cavity, resulting in irritating pain in the lower abdomen, and endometrial reflux into the abdominal cavity may plant endometriosis in other parts of the uterus. If the discomfort after artificial insemination is not relieved for a long period of time, it is recommended to consult a doctor in time to improve the examination and treat the symptoms.