What causes sperm weakness?

Spermatozoa is weak, also known as normal asthenozoospermia, many reasons can cause asthenozoospermia, asthenozoospermia is mainly characterized by reduced sperm motility. Many diseases of the normal reproductive tract, such as varicocele, testicular epididymitis, etc., are common causes of asthenozoospermia. Varicocele due to testicular congestion, hypoxia, therefore, will reduce testicular spermatogenic function, so that sperm motility decreased. Due to the presence of inflammation of the reproductive tract, such as testicular epididymitis, sperm motility will be reduced, resulting in asthenospermia. In addition, congenital testicular abnormalities, such as testicular atrophy or cryptorchidism, can also cause asthenospermia. Clinical semen routine can be determined after testing sperm motility, for the diagnosis of asthenospermia is very helpful.