Azoospermia cannot be seen on its own and scientific tests are needed to make a definitive diagnosis of azoospermia. Azoospermia is the absence of sperm in a man’s semen, which can cause male infertility. Azoospermia is the absence of sperm in a man’s semen, which can cause male infertility. Any disease requires scientific examination to make a clear diagnosis, and the patient cannot diagnose the disease by himself, and azoospermia is certainly not an exception. Therefore, men need to go to the hospital for examination. Azoospermia can be diagnosed when no sperms are found in the semen after centrifugation and taking the sediment for microscopic examination for three times. The main causes of azoospermia in men include testicular spermatogenic dysfunction and obstruction of the ejaculatory pathway. If a man is diagnosed with azoospermia, he should undergo further examination to clarify the causes of azoospermia and then adopt a targeted treatment plan.