Generally speaking, the rate of deformed sperm in normal semen does not exceed 10%. Spermatozoa are mainly produced by the testes and account for a small portion of semen. Most of the semen is seminal plasma, which can provide some nutrition for spermatozoa. In a normal adult man, each ejaculation, the volume of ejaculate is around 3.5 ml and the number of sperm contained in it is around 60 to 200 million, of which, the percentage of active sperm is around 60% and the percentage of deformed sperm is less than 10%. According to the reference value of semen characteristics: if the percentage of normal form sperm is less than 4%, then it is deformed spermatozoa. A normal adult man with an ejaculate volume of more than 1.5ml per ejaculation, a concentration of 1.5×106/ml and a total sperm viability of more than 40% will not have much problem and his wife will have a higher chance of pregnancy. If these data are relatively abnormal during the semen examination, the patient’s sperm quality will be poor, which can easily lead to infertility. The quality of semen and sperm, the impact factors are relatively large, daily eating habits, living environment, work pressure, etc., may lead to a decline in sperm quality, so, daily must pay attention to self-adjustment, relaxation of stress, self-regulation of emotions, avoid the stimulation of tobacco and alcohol, out of some radioactive environment, usually underwear should be loose, too tight later there will be pressure on the testicles, easy to lead to a decline in sperm quality. If the sperm quality is poor for a long time, we must carefully find the cause and carry out the appropriate treatment. In short, if the couple is not conceiving for a long time in the case of regular sexual life, they must both seek medical examination and find the cause for targeted treatment.