A sperm malformation rate of 99% indicates that the patient has a medical condition that results in abnormal sperm quality. Among the sperm produced by the testes on a daily basis, there are normal sperm as well as malformed sperm. Malformed sperm mainly refers to abnormal sperm morphology and activity. Normally, malformed sperm accounts for about 20% to 40% of the total sperm. When normal sperms account for less than 30% of the total sperms, it is called dyszoospermia. This condition can seriously affect male fertility. The patient’s current sperm abnormality rate is 99%, so it can be said that, basically no normal sperm or very few normal sperm, there may be infertility, and early medical treatment is needed. Common factors leading to abnormal sperm quality include varicocele, prostatitis, epididymitis, orchitis, seminal vesicle adenitis, smoking, alcoholism, staying up all night, mental stress, preference for tight-fitting clothes and pants, poor dietary habits, and prolonged exposure to high temperatures. After the patient seeks medical treatment, the patient’s specific condition and the cause of the disease will be clarified through history taking, physical examination and relevant auxiliary examinations, and then the patient will undergo conservative treatment with medication or surgical treatment, so as to try to restore the normal sperm specific gravity and to ensure a good reproductive function.