A grayscale electron micrograph shows hundreds of sperm cells stuck together
Antibodies Stop Sperm in Their Tracks
Engineered antibodies trap and immobilize human sperm in the reproductive tract of female sheep, paving the way for possible use as a nonhormonal contraceptive in people.
ABOVE: B. Shrestha et al. Sci Transl Med, 2021
Antibodies Stop Sperm in Their Tracks
Antibodies Stop Sperm in Their Tracks

Engineered antibodies trap and immobilize human sperm in the reproductive tract of female sheep, paving the way for possible use as a nonhormonal contraceptive in people.

Engineered antibodies trap and immobilize human sperm in the reproductive tract of female sheep, paving the way for possible use as a nonhormonal contraceptive in people.

ABOVE: B. Shrestha et al. Sci Transl Med, 2021
vagina
Placental Microbiome’s Existence Challenged
Abby Olena | Jul 31, 2019
The authors of a new study find no evidence for bacteria in the placenta, but others in the field question their interpretation of the data.
Bacteria Found in Women’s Upper Reproductive Tracts
Diana Kwon | Oct 17, 2017
A new study identifies microorganisms residing in the human fallopian tubes and uterus, but some researchers are skeptical of the findings. 
Cave Creature Genitalia, Other Weird Discoveries Net 2017 Ig Nobels
Shawna Williams | Sep 15, 2017
In one winning paper, scientists describe an insect whose females have evolved a penis-like appendage that penetrates males’ “vaginas.”
How Zika Infects Mother and Baby
Alison F. Takemura | Aug 25, 2016
The virus replicates in the vaginal tissue of pregnant mice and in the brains of their fetuses, researchers show.
The Maternal Microbiome
Kerry Grens | May 21, 2014
Moms bombard their babies with bugs both before and after they’re born.
Characterizing the “Healthy” Vagina
Jef Akst | May 19, 2014
The overly simplistic notion of a Lactobacillus-dominated vaginal microbiome is giving way to an appreciation of diverse and dynamic bacterial communities.
Women Receive Lab-Grown Vaginas
Jef Akst | Apr 14, 2014
Doctors implant custom-made organs, built from a tissue sample and a biodegradable scaffold, into four female patients born with underdeveloped or missing vaginas.