A semen analysis can help your doctor diagnose fertility issues. A sample is looked at under a microscope to see how many sperm cells it contains, how they're shaped, and how well they move. (Photo ...
"This guy has a few tails, at least two," Dr. Allison Rodgers, a reproductive endocrinology infertility specialist at Fertility Centers of Illinois, remarks in one video, viewed over 23 million times.
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