If the urethra is inflamed, the frenulum and foreskin will swell.

If the male urethra is inflamed, the external opening of the urethra will become red and swollen, and the edge will also be everted. White blood cells or lymphocytes can be seen infiltrating the urethra. If male urethritis is not treated in time, the entire male reproductive organ will begin to itch and become inflamed, just like it is contagious. When men and women have sex, it may be transmitted to the female reproductive organ.

1. In acute urethritis, the external urethral opening is red and swollen, the edges are everted, the mucosal surface is often adhered by serous or purulent secretions, and sometimes there are shallow ulcers. Under the microscope, mucosal edema can be seen, in which white blood cells, plasma cells and lymphocytes are infiltrated, capillaries are dilated, and the paraurethral glands are congested or filled with piles of pus cells.

Chronic urethritis lesions mainly occur in the posterior urethra, bladder neck and bladder trigone, and sometimes spread to the entire urethra. The surface of the urethral mucosa is rough and dark red granular. Due to scar contraction, the external urethral opening is smaller than normal. Under the microscope, lymphocytes, plasma cells and a small number of white blood cells can be seen, and fibroblasts increase.

2. Gonorrhea, chlamydia and mycoplasma that cause urethritis are among the pathogens that cause infertility. Chlamydia and mycoplasma cause urethritis with mild or even no symptoms. Many people mistakenly believe that if there are no symptoms, there is no STD, which delays the timing of examination and treatment. If mycoplasma infection is not treated for a long time, it will attach to the tail of male sperm, causing sperm motility to be significantly weakened, thus affecting conception. In women, it causes inflammation of the fallopian tubes and other pelvic cavities. It leads to blockage of the fertilization channel, which will also affect fertility. Many infertile patients among modern young people have finally discovered this cause, which deserves attention.

3. Acute urethritis can be divided into bacterial urethritis, gonococcal urethritis and non-gonococcal urethritis. After being infected with gonococcal urethritis, there is a 2-5 day avoidance period. In the early stage of the disease, the symptoms of acute urethritis are redness, swelling, itching, and low tingling at the urethral opening, followed by purulent secretions at the urethral opening, which gradually worsens. The patient's urethral opening is often blocked by secretions. If it is not treated in time, it may turn into chronic gonococcal urethritis. Some patients may develop prostatitis, seminal vesiculitis, epididymitis, etc.