A growing body of medical research is highlighting a lesser-known consequence of tuberculosis that could have serious implications for reproductive health. While tuberculosis is commonly associated with lung infections and chronic coughing, scientists are increasingly warning that the disease can also affect the reproductive system and potentially lead to infertility in both men and women.
Recent studies suggest that tuberculosis infections, particularly when they spread beyond the lungs, can damage reproductive organs and interfere with fertility. This form of the disease, often called genital tuberculosis, occurs when the bacteria Mycobacterium tuberculosis spreads through the bloodstream from the lungs or lymph nodes to reproductive tissues. Although relatively underdiagnosed, researchers say this condition is becoming an important focus in fertility research.
Medical studies indicate that tuberculosis is a significant contributor to infertility, especially in regions where the disease remains common. In fact, some research suggests tuberculosis may account for as much as 20 to 30 percent of infertility cases in certain high-burden countries. Scientists believe the infection can cause long-term damage to reproductive organs through inflammation, scarring, and structural changes that make conception more difficult.
In women, genital tuberculosis most commonly affects the fallopian tubes and the lining of the uterus. When the infection spreads to these areas, it can cause blockages, scar tissue, and changes in the uterine environment. These complications may prevent eggs from traveling through the reproductive tract or make it harder for embryos to implant successfully in the uterus. As a result, many women with undiagnosed genital tuberculosis first discover the condition during fertility testing.
Researchers have also found that tuberculosis may affect ovarian health. Some studies show that women with latent genital tuberculosis have significantly lower levels of certain fertility indicators, such as anti-Müllerian hormone, which is associated with ovarian reserve and reproductive potential. These findings suggest that the infection could quietly impact fertility even before obvious symptoms appear.
The disease can also affect male fertility, although this is less widely recognized. Tuberculosis infections in the male reproductive system can involve organs such as the testes, epididymis, or prostate. When the infection causes inflammation and scarring in these areas, it may block sperm transport or damage sperm production. In some cases, infertility may be the first noticeable sign of genital tuberculosis.
Another concern highlighted by recent studies is the effect of tuberculosis on pregnancy outcomes. Researchers have found that latent tuberculosis infections may increase the risk of miscarriage in women undergoing assisted reproductive treatments. Tuberculosis during pregnancy can also increase the likelihood of complications such as premature birth or ectopic pregnancy, making early diagnosis particularly important.
One of the biggest challenges doctors face is that genital tuberculosis often produces few obvious symptoms. Unlike pulmonary tuberculosis, which typically causes persistent cough and respiratory problems, reproductive tuberculosis can remain silent for years. Many patients only receive a diagnosis after experiencing unexplained infertility, menstrual irregularities, or repeated pregnancy loss.
Because of this, fertility specialists in several countries now recommend screening for tuberculosis in patients with unexplained infertility, particularly in regions where the disease is more common. Early detection and treatment with anti-tuberculosis medications can significantly improve reproductive outcomes in some cases, especially if the infection is treated before severe organ damage occurs.
Public health experts emphasize that tuberculosis remains one of the world’s most widespread infectious diseases, affecting millions of people each year. While global attention often focuses on respiratory symptoms and transmission control, researchers say it is equally important to understand the broader health consequences of the disease.
As awareness grows about the link between tuberculosis and fertility risks, medical professionals are urging greater research, earlier screening, and improved diagnostic tools. These steps could help prevent long-term reproductive complications and ensure that patients receive timely treatment before the infection causes irreversible damage.
The emerging evidence serves as a reminder that tuberculosis is not only a lung disease but a complex infection that can affect many parts of the body. For individuals struggling with unexplained infertility, new research suggests that tuberculosis may be a hidden factor that deserves closer attention in modern reproductive medicine.