Normal sperm morphology in normal men normal sperm rate is >4%. Sperm morphology needs to be combined with the judgment of the head, neck, tail and other parts of the spermatozoa, direct observation of sperm morphology through the microscope, counting 200 spermatozoa, reporting the percentage of normal morphology and abnormal morphology, only the spermatozoa that have a normal head, neck, and tail are normal, and spermatozoa that are in a critical state are abnormal, and senescent spermatozoa shouldn’t be included within abnormal spermatozoa. And when observing sperm morphology, attention should be paid to the presence of red blood cells, white blood cells, epithelial cells and other components, in order to assist in defining the cause, the normal morphology of spermatozoa should be >4%, if less than 4% is known as deformed spermatozoa. Abnormal spermatozoa increase may be related to infection, high temperature, radiation, alcoholism and many other reasons, and should be actively treated under the guidance of the doctor.