Mycoplasma positivity does not necessarily indicate a sexually transmitted disease. Mycoplasma infection is a common reproductive system disease in clinical practice, and it can lead to infertility, ectopic pregnancy, miscarriage, premature rupture of membranes, preterm delivery, and related conditions. Mycoplasma infection falls under the category of sexually transmitted diseases because it is primarily transmitted through sexual contact. Current medical technology can cure mycoplasma infection. Treatment can include the use of azithromycin or doxycycline. There are many types of mycoplasmas. Pneumonia mycoplasma can cause pneumonia and upper respiratory tract symptoms. Ureaplasma urealyticum and other reproductive tract mycoplasmas cause infections in the urinary and reproductive systems. (Use medication under the guidance of a doctor.)