New findings indicate that reimplanted childhood testicular tissue can produce sperm in adulthood, supporting experimental fertility preservation strategies.

A startup out of Utah, Paterna Biosciences, says it has successfully grown functional human sperm in a lab and used the sperm to make visibly healthy-looking embryos. The technique could eventually ...

Dr. Jamin Brahmbhatt is a urologist and robotic surgeon with Orlando Health and an assistant professor at the University of Central Florida’s College of Medicine. In my clinic, one of the first things ...

Study into how fertilisation could work in space finds sperm may get disorientated when trying to find an egg Sperm in space are likely to get disoriented and lost while struggling to find their way ...

London — Sperm from a donor who unknowingly carried a cancer-causing gene has been used to conceive nearly 200 babies across Europe, an investigation by 14 European public service broadcasters, ...

A single sperm donor who carries a rare cancer-causing genetic mutation has fathered at least 197 children across 14 countries in Europe, according to a collaborative investigation by 14 European news ...

Andrew Joseph covers health, medicine, and the biopharma industry in Europe. You can reach Andrew on Signal at drewqjoseph.71. LONDON — A sperm donor who unknowingly carried a gene variant that can ...

A decade-long review by George Mason University researchers reveals growing evidence that neonicotinoid insecticides—the world’s most widely used class of pesticides—may harm male reproductive health.

If you have an ovarian cyst and suddenly feel a sharp or intense pain in your lower belly, you might wonder if the cyst has ruptured (broken open). A ruptured ovarian cyst can cause a range of ...

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 ...

Around one in 10 women will develop ovarian cysts at some point during their lives, and while the prospect of a cyst growing on your ovaries could set off alarm bells, they aren’t something you need ...