The inability of a man to get his wife (partner) pregnant can be due to several causes. One of such is an abnormal sperm. A man's sperm can be faulty in different ways, all of which will make him infertile. Hence, it is important any man whose wife is finding it difficult to conceive accompanies her to the hospital and they see the doctor together. One of the most important and commonest tests a doctor (urologist) recommends for the man, in this case, is called a seminal fluid analysis (SFA); this test is carried out to examine the sperm for every possible abnormality associated with infertility.

Below are the common abnormal findings from seminal fluid analysis associated with infertility in a man:
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