Adhere to good habits, there are some male infertility can be completely prevented and avoided: First, understand certain male physiological characteristics and health care knowledge, if you find that the testicles have different changes from the usual, must be timely diagnosis and treatment. Second, to strengthen the awareness of self-protection, especially should do a good job of occupational protection. Third, pay attention to the protection of testicles and other reproductive organs. Fourth, change bad habits and quit smoking and drinking; Fifth, premarital examination should be done well. Sixth, we should cooperate and understand each other in the life of husband and wife.