Strictly speaking, Ureaplasma urealyticum is not a disease, but a bacterium. This bacterium, Ureaplasma urealyticum, can cause various diseases and symptoms.
A Ureaplasma infection is problematic because it often causes no symptoms at all. As a result, the infection often remains undetected and untreated for a long time.
If left untreated, the infection leads to further illnesses, which can often have serious complications. In the worst cases, it can lead to infertility and, in pregnant women, to premature births or miscarriages.
The Ureaplasma urealyticum bacterium is only about 0.1 to 0.6 micrometers (µm) in size and belongs to the mycoplasma family. It does not have a solid cell wall. This makes the bacterium resistant to some antibiotics. Ureaplasma urealyticum can multiply outside of cells.
The bacterium is also highly contagious. In most cases, it is transmitted through unprotected sexual intercourse. Ureaplasma infection is therefore a sexually transmitted disease in the broadest sense.
However, other routes of infection are also possible, for example via
- the blood, e.g. blood transfusions or unclean needles,
- saliva or
- open wounds.
In rare cases, transmission via the air or respiration is even possible. For example, an infected person would have to cough in the face of a healthy person. Under certain circumstances, infection is also possible through contact with nasal or eye secretions of an infected person.
In most cases, a ureaplasma infection does not cause any symptoms. This is why it often goes unnoticed and untreated for a long time.
If the ureaplasma infection remains untreated for several months, it can also affect other parts of the body such as
permanently.
The first symptoms may appear around 10 to 14 days after infection with Ureaplasma urealyticum.
Symptoms of a ureaplasma infection in men
Possible symptoms of ureaplasma infection in men are
- A slight burning sensation in the urethra,
- pain when urinating,
- a frequent urge to urinate,
- an unusual, either clear or cloudy discharge from the penis,
- redness and inflammation in the genital area and
- abdominal pain.
If left untreated, Ureaplasma urealyticum can cause various diseases of the urogenital tract in men. These include inflammation of the urethra (urethritis), which later spreads to the bladder (cystitis).
can spread.
In the worst case, inflammation of the testicles can lead to infertility (sterility) in men.
Symptoms of a ureaplasma infection in women
Symptoms in an infected woman can include
- Redness and inflammation in the genital area,
- Pain when urinating,
- frequent urge to urinate,
- unusual discharge and
- abdominal pain.
An untreated ureaplasma infection leads to bacterial colonization of the lower female genital tract. Possible diseases and long-term consequences include cystitis and infertility.
In addition, a ureaplasma infection in pregnant women can cause complications such as
- premature or stillbirths or
- infection of the child during birth
birth. In infected children, Ureaplasma urealyticum can cause pneumonia or chronic infections of the central nervous system, among other things.
The diagnosis of an infection with the bacterium Ureaplasma urealyticum is usually made by
- a medical history interview, during which the attending physician asks the patient to describe the symptoms,
- a physical examination and
- the detection of the causative pathogen Ureaplasma urealyticum.
The pathogen can usually only be detected using a swab and not a urine test. The doctor takes this swab from the affected part of the body as part of the physical examination. This is usually the urethra.

The bacterium Ureaplasma urealyticum can be detected in the laboratory © raresb | AdobeStock
Doctors can use the swab to grow a pathogen culture in the laboratory. This allows the pathogen to be precisely identified and the diagnosis confirmed.
Ureaplasma infections are usually treated with special antibiotics. They kill the Ureaplasma urealyticum bacterium. The following are usually used
- the antibiotic doxycycline from the tetracycline group and
- the antibiotic azithromycin.
Pregnant women who are not allowed to take doxycycline can also be given erythromycin.
Depending on the severity of the ureaplasma infection, the antibiotic must be taken for at least seven days. If necessary, the antibiotic therapy must also last between 21 and 28 days.
It makes sense to treat your partner as well. They could already be infected with the pathogen. Without co-treatment, the partner could re-infect the patient after treatment.
A ureaplasma infection can be treated and cured quickly and easily with antibiotics. The prognosis is therefore generally good.
More problematic is a ureaplasma infection that goes unnoticed for a long time due to the lack of symptoms and therefore remains untreated. It can lead to serious complications and long-term consequences such as
- infertility,
- premature births,
- stillbirths,
- Chorioamnionitis (bacterial infection of the vagina that often occurs during pregnancy),
- meningitis,
- pneumonia and
- damage to the nerves, joints and muscles.
can result.