male fertility

9 Stories

Warning to Guys: Sunscreen May Be Tied to Fertility Trouble

But scientists aren't saying you should ditch it

(Newser) - In the latest study proving everything in the world is dangerous, researchers are warning about a possible link between sunscreen and male fertility problems. The scientists investigated urine-sample data from 500 couples trying to have kids. They found that among couples taking the longest time to conceive, male partners had... More »

Scientists Turn Stem Cells Into Working Sperm

Researchers see hope for infertile men

(Newser) - Researchers have managed to produce sperm cells from embryonic stem cells—and for the first time, the sperm worked, resulting in healthy baby mice. Researchers in Japan mixed the embryonic stem cells with certain proteins and hormones. They converted the resulting cells into germ cells, which they implanted in the... More »

Sperm Grown in Lab for First Time

If it works in humans, it could help with men's infertility

(Newser) - Japanese researchers have grown sperm in the laboratory for the first time, reports Nature . If the breakthrough with mice transfers to humans, it could open up IVF treatments for infertile men, notes the Guardian . Scientists created the sperm from the testicular tissue of mice and successfully produced a dozen baby... More »

Guys, Beware Laptops' 'Scrotal Hyperthermia'

If it's on your lap, it's heating things up

(Newser) - This study involves the phrases "scrotal temperature elevation" and "scrotal hyperthermia," so you know it can't end well. SUNY researchers found that using a laptop on the lap for only 10 or 15 minutes heats up men's testicles—figure about 1-degree Celsius in 15 minutes if sitting... More »

More Sex Makes Stronger Sperm, Cuts Infertility

Men's sperm quality improves with daily ejaculation, study finds

(Newser) - Having sex every day improves sperm quality and can improve a couple's chances of conception, an Australian fertility specialist finds. Eight in 10 men with fertility problems showed less damaged DNA and more mobility in their sperm after 7 days, the BBC reports. The study recommended men "keep the... More »

Gene May Yield 'Male Pill'

Discovery could also help some infertile men

(Newser) - A newly identified gene that causes a type of male infertility may be the key to eventually developing a male oral contraceptive pill, the Independent reports. The gene, CATSPER1, enables sperm to wriggle through the outside of an unfertilized egg. A drug that could switch the gene on and off... More »

Would-Be Dads Have Ticking Clock, Too

Men's age can affect ability to conceive earlier than women's

(Newser) - When a couple has trouble conceiving, don't necessarily blame the woman and her limited supply of eggs—men's fertility starts dropping even before women's, Time reports. In addition to fecundity issues, older men also risk siring children with higher rates of autism, schizophrenia, Down syndrome and bipolar disorder. Male fertility... More »

Quality Sperm Demand More Sex

Docs tie frequent activity to reduced genetic defects

(Newser) - Conventional wisdom says daily sex reduces the chance of success for couples trying to conceive, but conventional wisdom may be very wrong. A small Sydney University study found men with damaged sperm actually improved its quality by producing it on a daily basis for a week. Abstaining does increase quantity,... More »

Chlamydia Makes Men Infertile

Antibiotics treatment helps 86% of couples conceive

(Newser) - Chlamydia makes men infertile too, a new study finds. Spanish scientists say that infected sperm has three times more damage, or DNA fragmentation, as healthy sperm. Its density, shape and swimming ability also decline. But an antibiotics treatment repaired the damage by 36% over 4 months, and almost 90% of... More »

9 Stories