What does it mean when there is bleeding after bowel movements?
Mar 16, 2023
Source: Cainiu Health
Dr. Cheng Yicheng
Introduction
Bleeding after defecation is often acute, with blood flowing from blood vessels and being expelled through the anus along with feces or immediately following defecation within a short period of time. It can be caused by either physiological or pathological factors. When post-defecation bleeding occurs, further evaluation by a doctor is necessary to determine the exact cause, followed by targeted treatment accordingly.
Bleeding after defecation is often acute bleeding, in which blood passes through the anus along with feces or is expelled immediately after bowel movement within a short period of time. It can be caused by either physiological or pathological factors. If bleeding occurs after defecation, further evaluation by a physician is necessary to determine the exact cause, followed by targeted treatment.
1. Physiological Factors
This type of bleeding usually occurs when a person strains excessively during bowel movements due to constipation, leading to bleeding after defecation.
2. Pathological Factors
1) Hemorrhoids
Clinical manifestations include bleeding after bowel movements or blood present on the surface of stool. If the bleeding is mild, topical treatments such as potassium permanganate solution, hemorrhoid ointments, or suppositories may be used under medical guidance. However, if bleeding is severe and leads to hemorrhagic shock, immediate hospitalization and treatment according to physician recommendations are required.
2) Ulcerative Colitis
It typically presents with recurrent diarrhea, abdominal pain, and mucous bloody stools. Some patients may also experience fever and weight loss. The condition may be associated with environmental, immune, genetic, and gut microbiota factors. Patients exhibiting these symptoms should seek medical advice at a hospital for proper diagnosis and treatment.
3) Inflammatory Bowel Disease (IBD)
Main symptoms include abdominal pain, diarrhea, bloating, palpable abdominal mass, bloody stools, and weight loss. Treatment usually follows physician prescriptions and may involve medication, psychological support, and traditional Chinese medicine therapies.
In addition to the above common causes, other potential diseases such as rectal malignancy must be considered. Early-stage rectal cancer may lack obvious symptoms, but as it progresses, patients may develop bloody or black stools. Once diagnosed, radical surgical resection for cancer should be performed as soon as possible. Therefore, individuals experiencing post-defecation bleeding should visit the gastroenterological or proctological department at a qualified hospital to identify the underlying cause and receive appropriate treatment under the guidance of a specialist.
