Pregnancy is generally not recommended during medication for oligozoospermia. Oligo-weak teratozoospermia is generally defined as oligozoospermia, weak spermatozoa combined with sperm deformities. Men with oligozoospermia have low sperm viability and poor quality sperm, which can result in low male fertility. Moreover, patients with oligo-weak dyszoospermia may have some effects on the fetus during the process of medication treatment. Generally speaking, the quality and number of sperm can be significantly improved in most of the patients with weak spermatozoa and oligozoospermia through active treatment with medication, and most of the reproductive medicine will not lead to fetal abnormality. Therefore, pregnancy can usually be achieved during treatment. If it is not possible to determine whether pregnancy can be achieved during treatment for oligozoospermia, it is necessary to be evaluated by a doctor, and patients are advised to consult their doctors in advance.