Male mixed bacteria a plus sign, may be a normal phenomenon, but also may be cystitis, urethritis and other diseases. 1. Normal phenomenon: there are some normal flora in the body, if you just check the miscellaneous bacteria a plus, the body does not have any uncomfortable symptoms, there is no abnormal white blood cells, red blood cells, etc., most of them are normal. In addition, the specimen is contaminated during the examination process, which may also lead to the male heterozygous bacteria a plus sign. 2. cystitis, urethritis and other diseases: if the test out of a mixed bacteria a plus along with frequent urination, urinary urgency, urination pain, as well as increased white blood cell count, urine red blood cells and other abnormal values, most of them belong to the cystitis, urethritis and other infectious diseases of the urinary system due. Physiological phenomenon generally do not need treatment and intervention, pay attention to hygiene, drink more water to promote metabolism, if there is a disease need to actively seek medical treatment, under the guidance of the doctor to choose sensitive antibiotic treatment.