What is a normal sperm? That is not so easy to answer. Humans, unlike other mammalian species, have sperm that have variable shapes and sizes. A skilled and trained andrologist must look at the sperm under high power microscopy and determine whether or not the variability is within and acceptable range or not. The sperm below was analyzed in the lab in my facility.
Hpv vaccine trial for treatment of topical wart - Using vaccine for hpv to prevent genital wart recurrence clinical trial
2 years ago