What are the common diseases that cause male infertility? There are many causes of male infertility, but most of them are caused by untimely treatment of some male diseases. So what are the common causes of male infertility? Together look at the following you will know. 1, testicular abnormality Testicular abnormality has three kinds of conditions: cryptorchidism, not only lead to infertility, but also can induce malignant changes; fetal period due to unfavorable environmental factors damage to the embryonic base; early testicular injury, can be caused by birth injury in the process of labor and delivery. 2.Sperm and semen abnormalities Because of the sperm quality abnormalities caused by male infertility, such as oligospermia, weak spermatozoa, azoospermia and so on. 3, varicocele Patients with arteriosclerosis and diabetes mellitus are often accompanied by small testicular artery disease, which causes infertility due to the decline in the ability to produce spermatozoa. Chromosomal abnormalities, such as hermaphroditism, reproductive organs and so on. 5, drugs and medications such as nicotine, alcohol, opium and other excessive, can affect the sperm production. Antiepileptic drugs have a direct effect on sperm production. These 5 are common diseases that cause male infertility, and I hope it will help men to prevent male infertility. In addition warm tips: daily found these diseases must pay attention to timely treatment, do not delay the best treatment time.