# What is the difference between an anal fissure and hemorrhoids, and when does rectal bleeding require a medical examination? Canonical page: https://clinicsjo.com/en/faq/difference-between-anal-fissure-hemorrhoids-when-to-seek-care Language: en Category: gastroenterology Publisher: ClinicsJo Published: 2026-09-13T08:09:52.922Z Content updated: 2026-09-13T08:09:52.922Z Translation (ar): https://clinicsjo.com/ar/faq/difference-between-anal-fissure-hemorrhoids-when-to-seek-care Patients often confuse common rectal disorders, specifically hemorrhoids and anal fissures, as both conditions share symptoms like pain and bleeding. Hemorrhoids are swollen, inflamed veins that form inside the rectum or under the skin around the anus, whereas an anal fissure is a tear in the lining of the anal canal [\[2\]](). The fundamental difference in symptoms lies in the nature of the pain and bleeding: hemorrhoids often cause painless bleeding, while an anal fissure is usually associated with severe, sharp pain during and after bowel movements. ## Key Differences Between Hemorrhoids and Anal Fissures The two conditions differ in their mechanism and clinical symptoms: - **Hemorrhoids:** These are swollen blood vessels in the rectum or anus. They can be internal or external and often appear as lumps or swelling around the anus. Common symptoms include itching, irritation, or a painful lump (if a blood clot forms within an external hemorrhoid). Bleeding is typically bright red and painless [\[2\]](). - **Anal Fissure:** This is a wound or longitudinal cut in the lining of the anal canal. The primary cause of pain is the tear itself, and the pain is usually very sharp and spasm-like after defecation. Sometimes, neglecting treatment for a fissure or the resulting infection can lead to complications such as an anal abscess [\[3\]](). It is essential not to attempt self-diagnosis, as these conditions require a medical examination to distinguish them from other, more complex diseases [\[2\]](). For more details on these disorders, you can view [Common Rectal Disorders (Arabic)](). ## When Does Rectal Bleeding Require a Medical Examination? Rectal bleeding is a symptom that always requires a precise medical evaluation. Although hemorrhoids and fissures are common causes, bleeding may be a sign of other conditions, such as proctitis or even tumors. You should consult a doctor in the following cases: - If the bleeding is persistent or recurs regularly. - If the bleeding is accompanied by a change in bowel habits (such as chronic diarrhea or severe constipation). - Presence of unexplained abdominal pain or unintentional weight loss. - The appearance of fever, chills, or purulent discharge from the anus, which may indicate an anal abscess [\[3\]](). ## Available Examinations Doctors use diagnostic tools to pinpoint the cause accurately. The examination may begin with a clinical assessment or a digital rectal exam. In certain cases, the doctor may request diagnostic procedures such as a colonoscopy or a lower gastrointestinal series (barium enema) to rule out deeper causes of bleeding or pain, especially if the symptoms are atypical [\[1\]](). If an abscess is suspected, the doctor may need to perform a CT scan or MRI to locate the collection of pus [\[3\]](). Always remember that seeing a doctor when you notice symptoms such as bleeding or severe pain is a critical step to receiving the appropriate treatment plan and avoiding complications. ## Medical references - [Lower GI Series]() - [Rectal Disorders]() - [Anorectal abscess]() General health education; not a substitute for individualized clinical assessment. Citation URL: https://clinicsjo.com/en/faq/difference-between-anal-fissure-hemorrhoids-when-to-seek-care#answer