"Abnormal sperm" refers to sperm cells that have irregular shape, size, or movement, which can affect their ability to fertilize an egg and potentially lead to problems with fertility or conception. Full definition
We know that abnormal sperm cause the majority of male infertility problems. (vcrmed.com)
There is a clear link between low seminal plasma glutathione levels and abnormal sperm parameters. (aminoacidstudies.org)
Higher levels of dietary folate in men have been related to the presence of fewer abnormal sperm than in those men with a low intake of folate. (integrativewomenshealthinstitute.com)