Urinary tract infection is caused by direct attack of bacteria (very few are fungi, protozoa and viruses). Urinary tract infection is divided into upper urinary tract infection and lower urinary tract infection. Upper urinary tract infection refers to pyelonephritis, and lower urinary tract infection includes urethritis and cystitis. Pyelonephritis is divided into acute pyelonephritis and chronic pyelonephritis. It is easy to happen to women. The harm of male urinary tract infection is very great, and severe urethritis can lead to infertility.
Why is male urethritis sterile
Urethritis is divided into gonococcal urethritis and non-gonococcal urethritis. Gonococcal urethritis is referred to as gonorrhea for short. Sexual intercourse is the main route of transmission. The pathogen is Neisseria gonorrhoeae. Gonorrhea is mainly manifested as male acute urethritis, which can invade the prostate, testis and bulbar gland of urethra, and can cause arthritis, endocarditis, meningitis and periarthritis through blood transmission. After infection with gonococcus, the incubation period is generally 2 to 7 days. The initial symptoms are yellow purulent secretion in the urethra, accompanied by burning pain and itching sensation during urination, and red and swollen urethral orifice. The diagnosis can be made if gonococcus is found in the secretion. It is not necessarily gonorrhea, but bacteria can be cultured.
Non-gonococcal urethritis is mostly caused by Chlamydia trachomatis, but a few cases can also be caused by Ureaplasma urealyticum. In patients with chlamydia trachomatis infection, the inclusion can be found in the urethral secretion, and the tissue culture is positive. The incubation period is generally 2-3 weeks, even 5 weeks. The symptoms of urinalgia are mild, the urine secretion is white mucus, the white blood cells in the secretion are few, and gonococcus can not be found.
The main reason for male infertility caused by urethritis is that inflammation causes urethral stricture and urethral orifice obstruction, such as affecting the vas deferens and testicles, proliferation, deformation and scar formation of fibrous tissue, and inflammation of testicles, seminal vesicles and prostate that cause vas deferens obstruction