This is a disease which causes inflammation of the urethra. At least half of the cases are caused by chlamydia and the cause of the other half is unknown.
Symptoms include pain during urination and a discharge.
The most common treatment for this disease is an antibiotic.
You can get this disease through sexual intercourse. It is most often transferred when the woman has chlamydia.
The diagnosis is made by taking a smear of the discharge and looking at it under a microscope, so the doctor can tell if you have the disease or not. The doctor can also take a urine sample to determine this.