Tests for weak spermatozoa include semen routine, semen biochemistry, anti-sperm antibodies, ultrasound, hormone level test, etc. It is recommended that the relevant people seek professional doctor’s judgment after finding abnormalities in the checklist. 1. Semen routine. It is necessary to take semen after 3~7 days of abstinence, and the quality and quantity of sperm and semen can be clarified through the examination. People with weak spermatozoonosis may have a decrease in the corresponding indexes, and the semen may be sticky and yellowish in color. 2. Semen biochemistry. It can mainly determine whether there is any abnormality in the function of each accessory gonad. 3. Antisperm antibodies. Blood and semen test, if there are corresponding antibodies, the occurrence of the disease is related to immune factors. 4. Color ultrasound. Ultrasound examination of the reproductive system can determine whether there is testicular or epididymal hypoplasia, varicocele and other diseases that cause weak spermatozoa. 5. Hormone level test. It can determine whether there are abnormalities such as sex hormones, and clarify whether there are sex hormones, metabolic diseases and other effects on spermatozoa. 6. Blood routine and blood biochemistry. Mainly used to determine whether there are infectious diseases, metabolic diseases and so on. 7. Chromosome and gene examination. It can clarify whether there are familial chromosomal abnormalities, genetic abnormalities and so on. If there is weak spermatozoa, it is recommended to be actively treated in regular hospitals.