Usually 98% of sperm head malformation rate will affect the quality of sperm, cause related diseases, also easy to reduce fertilization ability, thus causing male infertility. 1. Sperm quality: studies have shown that when the male sperm head deformity rate reaches 98%, to a certain extent, it will have an impact on the quality of the sperm, producing sperm with weak motility, which can easily cause weak spermatozoa. Secondly, it will also reduce the production of semen and sperm count, thus causing oligospermia. 2. Infertility: In addition to this, a 98% sperm head deformity rate will also reduce the ability of fertilization, which will have an impact on male fertility and easily lead to male infertility. Under normal circumstances, the sperm head deformity rate should be less than 20%, the sperm head deformity rate of 98% is considered to be caused by alcoholism, reproductive system infections, varicocele, etc. The sperm head deformity rate of 98% is considered to be caused by alcoholism, reproductive system infections, varicose veins and other reasons. To summarize, for the sperm head deformity rate of 98% of the patients need to go to the regular hospital for further examination, clear specific causes and timely treatment.