Does abnormal sperm necessarily cause male infertility?

Patient's question:

It is said that the production of abnormal sperm affects male fertility, but I'm not entirely clear. Does abnormal sperm necessarily cause infertility? Is that really true?

Doctor's answer:

Any male sperm contains abnormal sperm, so which type of abnormal sperm constitutes a disease? Generally, the percentage of abnormal sperm in a normal male's sperm is less than 30%. If the percentage of abnormal sperm exceeds 50%, it is called high-abnormal-rate sperm, which can lead to infertility. The treatment of abnormal sperm has become an important topic in modern medicine. If you are diagnosed with azoospermia, it is important to seek medical attention and treatment early to avoid further harm.

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