After urinating, how is there blood in the urethral orifice?

Blood at the urethral orifice after urinating may be related to urethritis, urethral stones, acute glomerulonephritis and other diseases.

1. Urethritis

Urethritis is a disease caused by infection with pathogens such as gonococcal and non-gonococcal bacteria, which can lead to rupture of the urethral mucosa and bleeding. Blood at the urethral orifice.

2. Urethral stones The

occurrence of urethral stones is related to metabolic abnormalities, urethral obstruction and other factors. When stones move in the urethra, they can cut through the mucous membrane, causing bleeding, which is manifested as blood at the urethral orifice.

3. Acute glomerulonephritis

Acute glomerulonephritis is a disease mainly caused by beta-hemolytic streptococcus. The main symptoms are hematuria, proteinuria, edema, etc. Nearly half of the patients can develop gross hematuria, so blood can be found when wiping the urethral orifice.