Mycoplasma urealyticum is the only species in the genus Ureaplasma and is named because it requires urea for growth. It is a pathogenic bacterium that causes non-gonococcal urethritis and is transmitted mainly through sexual intercourse and mother-to-child transmission. Urethral infection with Mycoplasma urealyticum results in symptoms such as frequent urination, urgency, painful urination, stinging at the urethra, and pus flow. The incubation period is usually one to three weeks, and the infection is likely to lead to urethritis and prostatitis, while the infection in women is likely to lead to vaginitis, urethritis and cervical infection. The infection may even cause infertility and miscarriage in women, and sperm deformation and reduced sperm motility in men, causing infertility, which is more harmful to urinary and reproductive health. In summary, Mycoplasma solani is a microorganism that causes non-gonococcal urethritis, which can be transmitted through sexual intercourse and can develop in both men and women, and is more harmful to the reproductive system and requires timely treatment.