What are the dangers of boric acid?
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Boric acid is a chemical that’s been used to treat some types of vaginal infections. It’s available in several forms, including suppositories that you place into your vagina.

You may have heard that you can become very sick or potentially die from boric acid. Because of this, you may be wondering whether boric acid suppositories are actually safe to use.

There have been no deaths reported from using boric acid suppositories. While boric acid can indeed be toxic when ingested orally, vaginal applications are considered to be safe.

Continue reading to learn more about the safety of boric acid suppositories and more.

A quick internet search may bring up some concern about the safety of boric acid suppositories.

But while boric acid suppositories can cause mild side effects, no serious side effects or deaths have been reported.

Is boric acid toxic?

When consumed by mouth, boric acid is toxic and can potentially lead to death. Deaths due to accidental boric acid ingestion have been reported in both adults and children.

A 2011 statement from the Centers for Disease Control and Prevention (CDC) notes that ingesting about 30 grams of boric acid in a short period of time is toxic to humans and can eventually result in death.

This is much more than the amount of boric acid that’s in a boric acid suppository, which is typically 600 milligrams.

Because suppositories may appear similar to a pill that you take orally, there is the risk that they could be accidentally swallowed.

Swallowing a boric acid suppository is dangerous, but using one as labeled for vaginal application is generally safe.

Side effects of using boric acid vaginal suppositories as directed tend to be mild. They can include things like vaginal irritation or discharge.

Boric acid and reproductive health

Because boric acid suppositories are inserted into the vagina, another concern related to them has to do with their potential effect on reproductive health.

Studies in animals have found that when taken orally, boric acid can affect fertility in male animals and affect a developing fetus in female animals. However, studies in humans haven’t returned the same results.

A 2020 research review examined the animal studies discussed above and compared them with studies in humans who are regularly exposed to high levels of boron, the key element in boric acid, in the environment.

Overall, researchers found that:

  • So far, studies of human exposure to high levels of boron haven’t produced the same reproductive effects that have been observed in animals.
  • Even the highest levels of environmental boron exposure were too low to reach blood and tissue levels that would have harmful effects on human reproduction.