Ureaplasma Ureaplasma is a group of tiny bacteria that inhabit the respiratory and urogenital tract. They belong to a class of bacterial cells called mycoplasma and are the smallest free-living organisms in the world. They’re so tiny that they can’t be seen even through a microscope. Ureaplasma is a normal part of the human microbiome. Microbiomes are the trillions of tiny cells that live in and on the human body. These tiny organisms help you digest food, fight infections, and maintain reproductive health. Sometimes, typically harmless bacteria invade healthy tissues and replicate. This creates a colony of bacteria that can lead to infection. Ureaplasma has been associated with a variety of medical problems, including bacterial vaginosis and pregnancy complications. Ureaplasma infections appear to be associated with an increased risk of some problems, but not the direct cause. Transmission Ureaplasma can be passed during sexual contact. Several studies found that vaginal infections with Ureaplasma were higher among women who had multiple sexual partners. These bacteria may also be passed to a fetus or newborn if the mother has Ureaplasma infection during pregnancy. Ureaplasma may also be found in women who have never been sexually active. Still, the cause of Ureaplasma presence may not be known in some cases. What are the Symptoms? Most people with Ureaplasma infection don’t experience any symptoms at all. Ureaplasma is a possible cause of inflammation in the urethra. This is called urethritis. Both men and women may experience the following symptoms of urethritis: ● pain during urination ● burning sensation ● discharge Ureaplasma is also a possible cause of bacterial vaginosis. Symptoms can include: