Mild spermatozoa are not very common. Weak spermatozoa is not very common, and in epidemiology, low sperm motility leads to male infertility in about 30% of cases. The causes of this disease are numerous and can be broadly categorized into congenital factors (such as XYY syndrome, Y chromosome deletion, cryptorchidism, etc.), endocrine abnormalities (such as pituitary gland insufficiency, hyper- or hypothyroidism, hyperprolactinemia, etc.), infectious factors (orchitis, epididymitis, prostatitis, etc.), immune factors (such as anti-sperm antibodies), smoking, drinking, and drug abuse, etc. The causes of this disease are numerous, but in general, even with the many causes of mild weak spermatozoa, it is not common. But in general, even though there are many causes, the population of patients with mild weak spermatozoa is not too large. If a patient is diagnosed with weak spermatozoa, it is recommended that he or she go to the hospital as soon as possible for standardized treatment in order to reduce the adverse effects of the disease.