Diagnosis of nongonococcal urethritis

　　According to the patient's history of unclean sexual contact, the symptoms of urethritis are milder than those of gonorrhea, gonococci cannot be found in secretion examination, and more than 10 to 15 white blood cells under high power microscope (400X), and more than 5 white blood cells under oil microscope (1000X) can be preliminarily diagnosed, and there are conditions Patients can use fluorescently labeled monoclonal antibodies (direct fluorescent antibody method) to detect chlamydial inclusion bodies in epithelial cells, or use polymerase chain reaction (PCR) to detect chlamydia and mycoplasma DNA, and culture chlamydia and mycoplasma for further diagnosis.

　　1. Smear and culture of urethral secretions to rule out gonococcal, candida and other bacterial infections. There are a large number of white blood cells in the smear, more than 10-15/400 times, more than 5/1000 times microscopic examination.

　　2. Urethral secretions or cervical scrapings, monoclonal chlamydial fluorescent antibody examination or culture. Specimen collection method: male If there is no urination for more than 2 hours, insert the cotton swab into the urethra 2-4cm, rotate it gently for 5 seconds, leave it for 2-3 seconds, and then take it out for culture.

　　3、female Use a speculum to fully expose the cervix. Use the first swab to wipe away the secretions on the cervical surface. Insert the second swab 1-2cm into the cervix, rotate it for 10 seconds, pause for 2-3 seconds, and take out the swab without touching the vaginal wall.