Specialized azoospermia prescriptions are unreliable because there are many causes of azoospermia, the common ones being functional azoospermia and obstructive azoospermia. These two types of azoospermia are difficult to cure by prescription. 1. Functional azoospermia: Functional azoospermia mainly refers to the loss of the function of testes to produce sperms, such as testicular atrophy, testicular dysplasia and other reasons. 2. Obstructive azoospermia: this condition is mainly caused by the blockage of the channel for delivering sperms, such as the obstruction of vas deferens, absence of vas deferens and other factors. Overall, patients with azoospermia should not blindly use prescriptions to avoid delaying the treatment of their condition. They should go to the local formal public hospital in time for a detailed examination to clarify the cause of the disease and then carry out targeted treatment.