Artificial insemination is an assisted reproductive technique that involves the non-coital transfer of male sperm into the female reproductive tract for the purpose of conceiving a woman. There are several types of artificial insemination: intravaginal, intracervical, intrauterine and intrafallopian. To perform IUI, a detailed gynecological examination is needed to check whether the internal and external genitalia are normal, whether the endometrial biopsy glands are secreting well, and whether both fallopian tubes are open. After determining that the female has the conditions for artificial insemination, the female is monitored for her physiological cycle and follicle development, the time of ovulation is estimated, and a suitable time is chosen for artificial insemination. Before ovulation, the male obtains semen by masturbation and performs routine semen examination. If the semen density and mobility are normal, after its liquefaction, the semen is injected into the vagina, around the cervix and into the cervical canal with a syringe or catheter. The female partner rests in bed for 2-3 hours so that the semen is not discharged. Usually three inseminations can be performed at one ovulation to increase the chance of conception, usually once 72 hours before, 24 hours after and once 24 hours after ovulation. Artificial insemination is an unconventional method of insemination and is only used as a last resort when the cause of infertility has been determined to be untreatable. Before artificial insemination, both men and women need to prepare for pregnancy routinely, regulate their emotions and keep their bodies in a healthy state, and then complete artificial insemination under the monitoring and guidance of a doctor.