Anal bleeding after urination is mainly considered to be related to hemorrhoids, lower rectal erosion, anal fissure, malignant tumors and other diseases.
1. Hemorrhoids: anal bleeding when urinating, considering hemorrhoids, especially internal hemorrhoids caused by bleeding, when urinating hard varicose vein clusters are stimulated, the pressure will cause rupture leading to anal bleeding.
2. lower rectal erosion: bacterial infections, long-term use of friction with Keseli, etc. may cause mucosal damage to the lower rectal area, resulting in erosion, venous stasis, urinary exertion intra-abdominal pressure rises, can cause venous rupture of the anus and bleeding, resulting in bleeding anus when urinating symptoms.
3. Anal fissure: when the skin of anal canal is subjected to external force, the fissure can also cause anal bleeding, especially when urinating hard to stimulate the anus, and can be accompanied by the symptoms of anal pain.
4. Malignant tumors: such as colon cancer, rectal cancer, etc., can cause anal bleeding after straining to urinate and stool, and at the same time, it can be accompanied by anemia, weight loss, loss of appetite, edema and other systemic symptoms.
It is suggested that patients should go to the hospital for detailed examination in time to make clear diagnosis and find out the cause of bleeding, and then actively cooperate with the treatment in order to avoid delaying the condition.