Does Ivermectin Cause Infertility in Humans: Truth and Myths

Does Ivermectin Cause Infertility In Humans

The number of people with reproductive problems is increasing, and this alarming trend is observed worldwide. The reasons for this are numerous and varied. Reproductive issues are commonly understood as an inability to conceive despite having unprotected and regular sexual intercourse for at least 12 months.

Publications talking about the connection between Ivermectin and infertility can be found on social media. Many users were quite skeptical, while others started actively reposting other people’s posts and leaving comments.

Can Ivermectin cause infertility and how reliable is this information?

We have not found any large-scale medical studies done on Ivermectin causing infertility. We have not found any connection between Ivermectin and improved fertility either. The therapeutic effect of this drug does not affect the chances of conception, nor does it affect sexual activity.

Adverse reactions of some drugs, substances, and treatments may have an effect on fertility, while Ivermectin doesn’t have any. This list includes:

  • Antipsychotics.
  • Chemotherapy.
  • Illicit substances (cocaine, amphetamines, marijuana, etc.).

All Ivermectin and fertility human studies confirm that this therapy is safe. If you have trouble conceiving, seek professional medical help.

Ivermectin and male fertility: what to do if there are problems

There is currently no scientific evidence that there is a connection between Ivermectin and male infertility. Such problems may occur during treatment, but they are not related to the effects of the drug.

You should consult a specialist in the following cases:

  • You have had problems with conception for the past 12 months.
  • You are experiencing testicular discomfort (pain, swelling, or other).
  • You have no desire to have sex due to issues with ejaculation or erections, among other things.
  • You have had testicular problems in conjunction with prostate disease.

Does Ivermectin cause infertility in females

Toxicity and safety studies have found no effect of Ivermectin on female fertility. Inaccurate claims that this drug causes infertility have gone viral on the Internet.

There are some studies demonstrating an association between Ivermectin and female fertility in mosquitoes, but they cannot be projected onto humans.

Does Ivermectin make you sterile?

There are articles and claims on the Internet and social media stating that Ivermectin causes sterilization. They cite data that shows 85% of the males taking Ivermectin experienced various sperm dysfunctions.

Does Ivermectin cause sterility? Can these reports be believed?

Widespread discussion of this question began after publications were posted on social media, like this tweet on This post would have been immediately considered ridiculous if it were not for a study conducted in Nigeria.

According to this small study, the drug has significant adverse effects on male germ cell function in people with onchocerciasis (African river blindness).

Claims that Ivermectin makes humans sterile have started to appear not only on social media but also in various scientific journals. This topic became a matter of concern for the scientific community because a side effect like this had not been reported before.

This situation forced an FDA spokesperson to make a statement that Ivermectin and sterility in humans are not related to each other. After that, most publications about the effects of the drug on reproductive health were redacted or deleted from websites.

You can study the information provided by the FDA (USA) or the TGA (Australia) on your own. By reading the instructions, you will find that Ivermectin has no side effects, such as sterilisation.

It shows that there is no need for additional clinical trials of Ivermectin and sterility studies. There is sufficient scientific evidence that this medication is safe in terms of reproductive health.

Hopefully, you have the answer to the question, “Can Ivermectin make you sterile?” Check the facts before believing false claims and fake news on the Internet.

Ivermectin and sterilisation of male animals

Some theoretical and applied research has found a link between Ivermectin and sterility in male animals (page 17). This rare effect sometimes occurs when Ivermectin interacts with animal drugs that inhibit ABC B1 function and disrupt the blood-brain barrier.

No other data for Ivermectin and sterile males among animals have been found.

Ivermectin and sperm

Taking the data from the studies conducted into account, it can be concluded that there is no correlation between Ivermectin and sperm effects.

One of the common causes of male infertility is low-quality sperm.

Possible causes of abnormal sperm and genital function include:

  • Low sperm count or no sperm count.
  • Sperm does not move as it should, which prevents it from reaching the egg.
  • Irregular shape of the sperm, which makes it difficult to move and fertilise the egg.
  • Infectious-inflammatory lesions of the accessory genital glands.
  • Abnormalities in the development of the testicles.
  • Existing medical problems that affect the reproductive system, such as narrowing of the vas deferens or insufficient sperm production.

Unfortunately, men can sometimes have idiopathic infertility where the specific factor preventing conception is unknown.

Ivermectin and sperm count

There is no discussion that Ivermectin reduces sperm count in the medical, scientific community. Neither clinical trials nor post-marketing studies have shown such a side effect.

However, this issue is widely discussed on the Internet, including on sites like Reddit. People are sharing unverified data and links to unreliable sources of information. You have to be very careful before accepting any conclusions that the authors of such reports claim to have reached.

Sperm cells are male reproductive cells that are formed in the testicles under the influence of hormones. A healthy man’s seminal fluid contains 1-20 million sperm cells per millilitre.

Possible reasons for a decrease in the number of male reproductive cells include:

  • Sexually transmitted diseases.
  • Low physical activity.
  • Diets lacking healthy nutrients.
  • Obesity or excess weight.
  • Heavy metal poisoning.
  • Smoking and/or alcohol consumption.

Spermogram analysis, which determines the motility, number and other characteristics of sperm cells, is one of the main methods of diagnosing male infertility.


Diseases or any other problems with the male or female reproductive system are not among the known side effects of Ivermectin. This is why the editors of serious publications have concluded that the information published about it should be corrected or removed. Do not believe dubious claims or fake news because they are not true.