Blood in the stool may come from hemorrhoids, but rectal bleeding should not automatically be attributed to hemorrhoids. Hemorrhoid bleeding is often bright red and may appear on toilet paper, drip into the toilet bowl, or streak the outside of the stool. However, colorectal cancer, anal fissures, inflammatory bowel disease, diverticular disease, polyps, and other gastrointestinal conditions can also cause visible bleeding.
The color, location, amount, and pattern of blood provide useful clues, but they cannot establish the diagnosis by themselves. Persistent, recurrent, unexplained, or concerning bleeding should be evaluated by a clinician.
| Feature | More typical of hemorrhoids | May suggest another source |
|---|---|---|
| Blood color | Usually bright red | Bright red, dark red, maroon, or black |
| Where the blood appears | On toilet paper, dripping into the bowl, or streaking the stool surface | Mixed throughout the stool or associated with black, tarry stool |
| Timing | Often during or immediately after a bowel movement | May occur independently of a bowel movement or continue between bowel movements |
| Pain | Internal hemorrhoid bleeding is often painless | Abdominal pain, cramping, rectal pain, or systemic symptoms may occur |
| Associated symptoms | Itching, prolapse, anal swelling, mucus, or difficulty cleaning | Change in bowel habits, unexplained weight loss, fatigue, anemia, fever, or persistent abdominal symptoms |
| Pattern | Often intermittent | Persistent, recurrent, progressively worsening, or unexplained bleeding requires evaluation |
Bleeding from internal hemorrhoids is commonly:
Internal hemorrhoids may also cause prolapse, itching, mucus drainage, irritation, or difficulty cleaning after a bowel movement. External hemorrhoids are more likely to cause swelling or discomfort; a thrombosed external hemorrhoid may produce a painful, firm lump.
Learn more about hemorrhoids and their common symptoms.
Yes. Bright red blood is often associated with bleeding near the anus or rectum, including hemorrhoids and anal fissures, but it does not rule out colorectal cancer or another colonic condition.
The American Cancer Society lists both bright red rectal bleeding and darker blood in the stool among possible colorectal cancer symptoms. Other concerning symptoms may include persistent changes in bowel habits, abdominal pain, weakness, fatigue, or unintended weight loss.
The safest approach is to evaluate the entire clinical pattern rather than relying on blood color alone.
Bleeding from another source may present as:
Black or tarry stool may indicate bleeding higher in the gastrointestinal tract. Acute gastrointestinal bleeding may also cause dizziness, fainting, shortness of breath, weakness, or a rapid heart rate and requires prompt medical attention.
Blood limited to the toilet paper or coating the outside of the stool may be more consistent with an anorectal source such as hemorrhoids or an anal fissure. Blood that appears mixed throughout the stool can suggest bleeding from farther inside the rectum or colon.
This distinction is useful but not diagnostic. Stool movement can alter the appearance of blood, and more than one condition may be present. A physical examination and, when indicated, endoscopic evaluation are needed to identify the source.
Rectal or gastrointestinal bleeding may result from several conditions.
An anal fissure is a tear in the anal lining. Bleeding is usually bright red and is often accompanied by sharp pain during or after a bowel movement.
Diverticular disease can cause painless lower gastrointestinal bleeding, which may be bright red or maroon and can sometimes be substantial.
Ulcerative colitis and Crohn’s disease may cause blood mixed with stool, diarrhea, mucus, abdominal pain, urgency, fatigue, or weight loss.
Most colon polyps do not cause symptoms, but some may bleed. Polyps are important because certain types can develop into colorectal cancer over time.
Possible symptoms include rectal bleeding, blood in the stool, persistent changes in bowel habits, abdominal discomfort, fatigue, iron-deficiency anemia, or unintended weight loss. Early colorectal cancer may also cause no symptoms.
Bleeding from the stomach or upper small intestine may produce black, tarry stool. Causes can include ulcers, gastritis, or other upper gastrointestinal conditions.
For a broader review, see What Causes Rectal Bleeding?.
Hemorrhoids and colorectal cancer can share symptoms, particularly rectal bleeding. The presence of hemorrhoids does not exclude colorectal cancer.
| Finding | Hemorrhoids | Colorectal cancer or another colonic condition |
|---|---|---|
| Bright red bleeding | Common | Possible |
| Blood mixed with stool | Less typical | Possible |
| Prolapse or anal lump | May occur | Less typical, but examination is required |
| Persistent bowel-habit change | Not typical | Requires evaluation |
| Unexplained weight loss | Not caused by hemorrhoids | Concerning feature |
| Iron-deficiency anemia | Possible with prolonged substantial bleeding, but uncommon | Requires evaluation for gastrointestinal blood loss |
| Abdominal pain or distention | Not typical | May indicate another gastrointestinal condition |
| Symptoms despite hemorrhoid treatment | Requires reassessment | Another source should be investigated |
The 2024 American Society of Colon and Rectal Surgeons guideline emphasizes that rectal bleeding should not automatically be assigned to hemorrhoids and recommends complete colon evaluation in selected patients based on history, examination, associated symptoms, prior endoscopy, and screening status.
Yes. Hemorrhoids may coexist with:
Finding hemorrhoids during an examination does not always prove that they are the only source of bleeding. Continued bleeding after successful hemorrhoid treatment warrants further investigation.
Evaluation begins with a detailed history and examination. A colorectal specialist may ask about:
The examination may include:
The clinician inspects for external hemorrhoids, thrombosis, fissures, irritation, prolapse, masses, or other visible abnormalities.
A gloved examination may identify tenderness, masses, blood, or other anorectal findings.
Anoscopy allows direct examination of the anal canal and internal hemorrhoids. It may also identify fissures, inflammation, or other anal-canal pathology.
A complete blood count may be ordered when anemia or significant blood loss is suspected. Stool testing may be used in selected circumstances, although a diagnostic evaluation is different from routine screening.
Endoscopic evaluation may be recommended when:
A colonoscopy examines the entire colon and may allow biopsy or removal of polyps when indicated. Not every patient with bright red blood requires immediate colonoscopy; the appropriate evaluation depends on age, symptoms, risk factors, examination findings, and prior screening history.
Learn more about rectal bleeding evaluation procedures.
For average-risk adults without symptoms, the U.S. Preventive Services Task Force recommends colorectal cancer screening beginning at age 45.
This screening recommendation applies to asymptomatic, average-risk adults. Rectal bleeding is a symptom and should be evaluated according to the clinical situation, even in a person younger than 45. Patients with a family history, inflammatory bowel disease, hereditary cancer syndrome, prior polyps, or other risk factors may require earlier or more intensive evaluation.
Arrange medical evaluation when you have:
Do not delay evaluation simply because hemorrhoids have been diagnosed previously.
Seek urgent or emergency medical care for:
Acute gastrointestinal bleeding can cause significant blood loss and shock.
Persistent or unexplained rectal bleeding should be evaluated rather than diagnosed from photographs, stool color, or symptoms alone.
Dr. Aisha Akhtar, MD is a board-certified colon and rectal surgeon who evaluates hemorrhoids, anal fissures, rectal bleeding, colon polyps, and other colorectal conditions for patients in Phoenix, Scottsdale, Glendale, and surrounding Arizona communities.
No. Hemorrhoids commonly cause bright red bleeding, but anal fissures, proctitis, diverticular disease, polyps, inflammatory bowel disease, and colorectal cancer can also cause red blood. The source cannot be confirmed from color alone.
There is no reliable home method to distinguish them with certainty. Hemorrhoid bleeding often appears on toilet paper, drips into the bowl, or coats the stool. Blood mixed with stool, persistent bleeding, bowel-habit changes, anemia, abdominal symptoms, or unexplained weight loss increases concern, but examination is required.
Yes. Colorectal cancer may cause bright red rectal bleeding or darker blood in the stool. Bright red blood should not automatically be considered benign.
Blood only on toilet paper is more commonly associated with an anal source such as hemorrhoids or a fissure. However, repeated bleeding still requires evaluation, particularly when the diagnosis is uncertain or other symptoms are present.
No. Hemorrhoids and colorectal cancer can coexist. Continued or unexplained bleeding should be investigated even when hemorrhoids are present.
Not everyone does. Colonoscopy may be appropriate when no clear anorectal source is identified, bleeding persists, associated abdominal or bowel symptoms are present, risk factors exist, or colorectal cancer screening is due.
Yes. Age 45 is the recommended starting age for routine average-risk screening, not a minimum age for evaluating symptoms. Rectal bleeding at any age may require medical assessment.
You may also explore these guides:
Dr. Aisha Akhtar, MD evaluates rectal bleeding and related anorectal symptoms with a focus on accurate diagnosis, evidence-based treatment, and timely exclusion of serious underlying disease.
“ The whole office was wonderful. Dr Akhtar was excellent. She was thorough. She explained things extremely well. She answered all my questions. I... The whole office was wonderful. Dr Akhtar was excellent. She was thorough. She explained things extremely well. She answered all my questions. I never felt like she was rushing my exam. ”
“ Dr. Akhtar and the entire team made what could have been a very stressful experience feel comfortable, reassuring, and genuinely cared for from sta... Dr. Akhtar and the entire team made what could have been a very stressful experience feel comfortable, reassuring, and genuinely cared for from start to finish. Dr. Akhtar was professional, compassionate, and took the time to thoroughly explain everything before my procedure, which immediately put me at ease. The procedure itself went smoothly, and I truly felt I was in excellent hands the entire time. The office staff was also kind, organized, and attentive throughout the process. I’m incredibly grateful for the level of care, patience, and professionalism I received. I would absolutely recommend Dr. Akhtar to anyone looking for a skilled doctor who truly cares about their patients and their comfort. ”
“ I cannot express the how thankful I am for Dr. Akhtar. I had been to 4 other colorectal doctors, 3 gastro doctors before seeing Dr. Akhtar. I was c... I cannot express the how thankful I am for Dr. Akhtar. I had been to 4 other colorectal doctors, 3 gastro doctors before seeing Dr. Akhtar. I was crying in her office when she met me the first time. That didn't deter her. Not only that but she located the issue on my first visit. She is kind, caring, thorough and incredibly knowledgeable. She listens, spends time with you and doesn't talk over you. I've needed extra time to discuss my case many times and she has always taken the time that I needed. I've brought to her research I've read, and she always already knows about the publications. The staff are kind and helpful. I dont know what I would have done without finding her. Another health care provider recommended her highly as do I. ”
“ Best colorectal surgeon I’ve ever met. Dr. Akhtar is compassionate, gentle, warm, and caring. I came to her in Glendale after having a horrific exp... Best colorectal surgeon I’ve ever met. Dr. Akhtar is compassionate, gentle, warm, and caring. I came to her in Glendale after having a horrific experience with a general surgeon in Flagstaff (where I live). The Flagstaff surgeon caused a hemorrhage that almost cost me my life, and then I developed stenosis after the emergency room surgeon “fixed” the hemorrhage. Dr. Akhtar was kind enough to take me as a patient (most surgeons will not take a patient who has already been operated by another surgeon due to liability). She was very respectful and gentle in the examination, and was even able to fit me in for an outpatient procedure under sedation the very same day (knowing that I drove over 2 hours to see her). I could not be happier with her. She took the time to personally call me the next day to check on my progress. You do not see this type of doctor very often anymore. She is someone who is in it for the patient, and you can tell. I will continue to drive over 4 hours there and back to receive her high quality care and expertise. Cannot recommend her highly enough. ”
“ Dr. Akhtar is THE BEST provider I have ever seen, period. She is incredibly knowledgeable, informative, and above all so kind. I have not met... Dr. Akhtar is THE BEST provider I have ever seen, period. She is incredibly knowledgeable, informative, and above all so kind. I have not met many people who have as comforting a bedside manner as she does. I was educated properly every step of the way and felt confident doing so because of her caring demeanor. Her PA Moses is also so friendly and upbeat, helping to ease any tension you may be feeling prior to the exam. The energy both Dr. Akhtar and Moses bring was paramount to how excellent my experience was here. Given their specialty, it would be easy to have an uncomfortable experience. However, they go the extra mile to make sure you are comfortable and reassured before anything is done. I cannot recommend this practice enough. Thank you Dr. Akhtar for the genuine concern and care you provided to me! Both my body and my outlook on my health outcomes are better off because of you. ”
“ This doctor is absolutely amazing. So warm and kind and she explained everything fully. I would recommend her to anyone needing her services. ”
“ How thorough she is in order to treat you ”
“ Dr. Aisha Akhtar I have been dealing with this issue for the last two years and seen many specialist but none of them as good as Doctor Akhtar- she... Dr. Aisha Akhtar I have been dealing with this issue for the last two years and seen many specialist but none of them as good as Doctor Akhtar- she was able to quickly diagnose my issue and provide a path to a solution. She's very professional, but also can explain things in simple terms. I'm very pleased with the results. ”
“ The Doctor and staff worked together seamlessly on all stages of my first office visit. Doctor Aisha Akhtar is absolutely brilliant. She Dx. a cond... The Doctor and staff worked together seamlessly on all stages of my first office visit. Doctor Aisha Akhtar is absolutely brilliant. She Dx. a condition I wasn’t aware of during physical exam and case history. I’m fortunate to live in an area with the best healthcare in the world. ”
“ Extremely knowledgeable and personable, respectful and sensitive. She made me feel comfortable and heard, and able to move forward with next steps in a timely manner. I highly recommend her! ”
Please don't hesitate to call us at 602-932-5660 or reach out via our online form, YouTube, Instagram and TikTok for educational resources.
