How do vaginal suppositories work?

Question

For example, a boric acid suppository. It’s a capsulated power pill. How does a vagina break down the capsule?

In: Biology

Answer 1

The pH of the vagina is roughly 4.5 which is fairly acidic. It’s a hostile environment to ensure bacteria cannot ascend the vagina into the uterus which has open entry to the abdominal cavity via the Fallopian tubes. Sperm are only allowed to survive passage after ovulation due to vaginal mucous ripening thanks to increased estrogen which allows them to swim through the mucous faster.