The success rate of IVF will be affected by many factors, among which the main factor from the man is the quality of semen. The quality of semen of patients with oligozoospermia is obviously not as high as that of normal men. Even for patients with severe oligozoospermia, the number of normal sperm in the semen is bound to be very small, then this situation will not Will it affect the success rate of IVF? The quality of the male semen is indeed an important factor affecting the success rate of IVF, but now the second generation IVF technology-ICSI is a single sperm cell injection technology, which can solve sperm to a large extent Quality problem. After the application of ICSI technology in the clinic, even severe oligozoospermia patients can be effectively assisted with pregnancy treatment. Single sperm cell injection technique is to use a very thin needle to suck a sperm and inject it into the egg under the microscope. Although the number of normal sperm in the semen of oligozoospermia patients is less than that of other men, the demand for the number of sperm by the ICSI technology itself is not large. Generally, a few dozens of normal sperm are enough for ICSI to assist pregnancy. Therefore, even if the male suffers from oligozoospermia, as long as there are normal sperm in the semen, even if there are only a few sperm, it is enough for ICSI technology to assist pregnancy. Clinical experience proves that ICSI technology’s pregnancy success rate will not be lower than that of conventional IVF, so male patients should not worry too much about IVF success rate. In summary, the success rate of test tube babies in patients with oligozoospermia is actually the same as the test tube success rate of other patients.