After defecation, the anus may feel burning, which may indicate the presence of hemorrhoids or anal fissures. Both of these anal and intestinal diseases can cause pain in the anus after bowel movements, as well as the appearance of blood in the stool. In daily life, it is important to maintain a light diet, avoid sitting for extended periods, and promptly undergo anal and intestinal examinations.

Possible Causes and Considerations

1. If a patient experiences a burning sensation in the anus after defecation, it is more likely to be hemorrhoids. This may also manifest as local swellings and obvious blood in the stool during bowel movements. Habitual constipation can easily trigger these symptoms.

2. The burning, hot, and painful sensation in the anus after defecation may be caused by excessive bowel movements stimulating the local mucosa. Alternatively, if there are small fissures in the anus, the stimulating nature of feces and their residue in the fissures can also cause a stinging or burning sensation.

3. The burning sensation in the anus after defecation may also indicate anal fissures, which are often secondary to constipation. Patients may experience anal pain, blood in the stool, a burning sensation in the anus, and fiery pain. Typically, there will be a clear fissure, which can occur in the anterior or posterior midline of the anus.