Can Saliva Kill Sperm?

Could performing oral sex before doing the deed hurt my chances of getting pregnant?
Save article
ByLowell T. Ku, MD, reproductive endocrinologist, Dallas IVF
Fertility Specialist
Updated
Mar 2017
Hero Image

If you’re trying to get pregnant, better tell your guy to keep his mouth away from down there. Sorry to spoil the fun, but while saliva doesn’t exactly wipe out all sperm, it does have a slight spermicidal activity. Research has found that when saliva was added to normal semen, it induced a “shaking movement” in 12 percent of the total sperm population. It only happened in high concentrations of saliva, but researchers did find that sperm motility (their ability to swim) was cut down significantly. Their conclusion was that saliva had a “deleterious effect on sperm motility and activity” and should not be used as a vaginal lubricant. So save the oral sex for days when you’re not ovulating and keep to the other kind of sex when the focus is on making a baby.

 

Plus More From The Bump:

Related Video
Save article

8 Signs of Fertility to Look for Each Month

Temeka Zore, MD
OB-GYN and Infertility Specialist

10 Things to Avoid When Trying to Conceive

Temeka Zore, MD
OB-GYN and Infertility Specialist

Peanut App Launches TTC Platform to Help Women Find a Safe Community

Nehal Aggarwal
Associate Editor
Published
11/18/2019

How to Get Pregnant Fast

Stacey Feintuch
Contributing Writer

How to Boost Your Fertility in Your 30s

Anna Davies
Contributing Writer

Men Should Go to Bed by This Time if They’re Trying to Conceive

Stephanie Grassullo
Associate Editor
Published
06/26/2019

Researchers May Have Found an Easy Way to Treat Endometriosis

Stephanie Grassullo
Associate Editor
Published
05/01/2019

Can Herbs Boost My Fertility?

Wayne S. Maxson, MD, medical director, reproductive endocrinologist, and founder, IVF Florida Reproductive Associates
Fertility Specialist
Article removed.