After Mycoplasma infects the human body, it can cause pneumonia, mycoplasmal pneumonia, and infections of the urogenital system. Is Mycoplasma infection contagious? Yes, it is contagious. For instance, pneumonia often spreads via the respiratory tract. Patients spread bacteria-laden droplets into the air by coughing or sneezing, which are then inhaled by healthy individuals. Infections of the urogenital system are primarily transmitted through sexual contact, that is, through sexual intercourse. Moreover, if a woman has a urogenital system infection, it can even be transmitted to the newborn during childbirth.