Sperm are male reproductive (sex) cells. The word "sperm" can refer to spermatozoon (singular) or spermatozoa (plural). Sperm are tiny cells with an oval-shaped body and a long tail. They measure just ...

Semen is a fluid that carries sperm, or male reproductive cells, out of the body during ejaculation. The average amount of ...

If you were thinking of kicking off tonight’s foreplay with some oral sex for your partner with a penis and planning on swallowing once your partner finishes, you might be wondering what exactly is in ...

Editor’s note: Dr. Jamin Brahmbhatt is a urologist and robotic surgeon with Orlando Health and past president of the Florida Urological Society. It is normal for semen to have minor changes in color, ...