Hemorrhoids look different depending on whether they sit inside or outside the anal canal and whether they have developed a blood clot. External hemorrhoids appear as small, soft lumps or swollen bumps around the anal opening, often skin-colored or slightly darker, while thrombosed ones turn a distinctive bluish-purple. Internal hemorrhoids are usually invisible from the outside unless they have prolapsed, in which case they look like moist, pinkish-red tissue protruding from the anus. The visual picture varies enough from person to person that knowing what to look for, and what might be something else entirely, is worth understanding in more detail.
What External Hemorrhoids Look Like
External hemorrhoids develop beneath the skin around the anus, below a dividing line inside the anal canal called the dentate line. When mildly swollen, they can look like small, rubbery bumps or slight bulges at the anal margin. Their color is usually close to the surrounding skin tone, sometimes a bit pinker or more purplish. They may feel firm or squishy depending on how engorged the blood vessels are. When they become engorged or develop a clot, they cause rectal pain.1JAMA. Hemorrhoidal Disease: A Review
In many cases, people discover external hemorrhoids by touch rather than by sight. A small, painless bump that has been there for a while might not draw attention until it becomes irritated from wiping, sitting for long periods, or straining during a bowel movement. Once irritated, the area can become red, swollen, and itchy. The skin around the hemorrhoid may look shiny or slightly stretched when the swelling is significant.
The Bluish-Purple Lump of a Thrombosed Hemorrhoid
The most visually alarming form of hemorrhoid is a thrombosed external hemorrhoid, which occurs when a blood clot forms inside the swollen vein. This produces a sudden, hard, tender lump at the anal margin that ranges in color from deep blue to dark purple. The discoloration comes from the clotted blood sitting just beneath the skin’s surface. Thrombosis in external hemorrhoids results in painful swelling that can reach the size of a grape or larger.2Clinics in Colon and Rectal Surgery. Hemorrhoids
The pain from a thrombosed hemorrhoid tends to peak in the first 48 to 72 hours and then gradually improves as the clot is reabsorbed. During resolution, the lump may soften and fade from dark purple to brown or yellowish, similar to a bruise working its way through the color spectrum. The whole process can take a couple of weeks. Occasionally the skin over the clot erodes, and you may see a small amount of dark blood on toilet paper. This looks different from the bright red bleeding typical of internal hemorrhoids, which is a useful visual clue.
If a thrombosed hemorrhoid is excised within that initial 48- to 72-hour window, patients usually get the fastest relief. After that window, the clot begins breaking down on its own, and the benefit of a procedure diminishes. The residual lump may persist as a skin tag once the clot resolves.
Internal Hemorrhoids and Grades of Prolapse
Internal hemorrhoids sit above the dentate line, inside the anal canal, and are covered by a mucous membrane rather than skin. Because of their location, they are invisible during a casual visual check unless they have started to prolapse. The standard grading system used by doctors describes four stages of prolapse, which correspond to four different visual presentations:
- Grade I: The hemorrhoid bleeds but does not protrude from the anus. You cannot see it from outside; it is only visible during an internal examination.
- Grade II: The hemorrhoid protrudes during straining or a bowel movement but slips back inside on its own. You might briefly see moist, reddish tissue at the anal opening that retracts within a few moments.
- Grade III: The hemorrhoid protrudes and stays out unless you manually push it back in. It looks like a soft, pinkish-red mass hanging from the anus.
- Grade IV: The hemorrhoid is permanently prolapsed and cannot be pushed back in. It appears as a constant protrusion of wet, glistening tissue around the anal opening, sometimes with multiple lobes.
This grading system, while widely used, has been criticized for oversimplifying the picture. Clinical guidelines from different surgical societies show contradictions in how grades map to recommended treatments, partly because two patients with the same grade can have very different symptom severity.3PubMed Central. Classification and guidelines of hemorrhoidal disease: Present and future Still, the grading gives you a useful mental model for what increasing severity looks like from the outside.
What Hemorrhoid Bleeding Looks Like
Bleeding is the hallmark symptom of internal hemorrhoids, and it has a distinctive visual pattern. The blood is typically bright red, painless, and noticed on toilet paper, in the toilet bowl, or coating the surface of the stool. It does not mix into the stool itself. This bright red color signals that the blood is coming from close to the anal opening rather than from higher up in the digestive tract, where it would appear dark or tarry.
Research using videoanoscopy, a technique that provides magnified views of hemorrhoidal tissue, has shown that a visual marker called the “red-color sign” strongly correlates with bleeding. This sign refers to cherry-red spots or streaks on the surface of the hemorrhoidal tissue. In one study, it appeared in about 80% of patients who reported bleeding, compared with roughly 30% of those without bleeding symptoms. The same study found that patients with bleeding tended to have larger hemorrhoidal columns, and both the red-color sign and size were statistically linked to bleeding.4PubMed. Videoanoscopy: useful technique in the evaluation of hemorrhoids
The amount of blood can range from a faint streak on toilet paper to enough to turn the water in the bowl pink or red. While it can look scary, hemorrhoid bleeding is rarely dangerous in the short term. However, chronic low-level bleeding over weeks or months can contribute to iron-deficiency anemia, so persistent bleeding deserves medical attention rather than reassurance alone.
Skin Tags That Linger After Healing
One of the more confusing visual remnants of hemorrhoids is the anal skin tag. After a thrombosed external hemorrhoid heals or after repeated episodes of swelling and deflation, the stretched skin may not fully retract. What remains is a small, soft, painless flap of skin at the anal margin. Skin tags are skin-colored, not purple or blue, and they do not bleed or swell the way active hemorrhoids do.
People often mistake skin tags for new hemorrhoids, which is understandable since they sit in the same location and have a similar bumpy appearance. The key difference is that skin tags are not engorged with blood. They are just excess skin. They do not require treatment unless they cause hygiene difficulties or irritation from friction. Recognizing the difference between a residual skin tag and an active hemorrhoid can save you an unnecessary trip to the doctor, though if you are unsure, a quick exam can settle the question.
How Hemorrhoids Look During Pregnancy and After Delivery
Hemorrhoids are particularly common during pregnancy and the postpartum period, and they tend to look more dramatic than in other contexts because of the degree of swelling involved. Rising progesterone levels during pregnancy can slow bowel motility and cause constipation, while the growing uterus puts increasing pressure on pelvic veins. During delivery itself, the enormous spike in abdominal pressure can block venous return from the rectum, producing hemorrhoids along with pain and edema.5PubMed Central. Effects of Tongyangxiao lotion bidet therapy combined with Ziyu ointment on postpartum hemorrhoidal pain, oedema, anxiety, and depression
Visually, pregnancy-related hemorrhoids can be larger and more swollen than what most people expect from the condition. External ones may look like puffy, purplish clusters around the anus, and prolapsing internal hemorrhoids can appear as glossy, protruding tissue that is tender to the touch. Perianal discomfort, pain, and visible protrusion are all significantly more common after delivery than during the first trimester.6Journal of Women’s & Pelvic Health Physical Therapy. Hemorrhoids, Anorectal Symptoms, and Related Risk Factors in Pregnancy and the Postpartum Period: A Follow-up Study Risk factors for developing them include higher body mass index, constipation, joint hypermobility, and higher birth weight of the baby.6Journal of Women’s & Pelvic Health Physical Therapy. Hemorrhoids, Anorectal Symptoms, and Related Risk Factors in Pregnancy and the Postpartum Period: A Follow-up Study
The good news is that most pregnancy-related hemorrhoids shrink significantly in the weeks after delivery as hormonal levels normalize and pelvic pressure drops. Some women are left with residual skin tags, but the acute swelling and discoloration typically resolve without surgical intervention.
Conditions That Can Look Like Hemorrhoids but Aren’t
Several other conditions produce lumps, bleeding, or protrusion around the anus that can easily be confused with hemorrhoids. Knowing the visual differences matters because some of these conditions require very different treatment.
- Anal fissure: A small tear in the lining of the anus that causes sharp pain during bowel movements and streaks of bright red blood on toilet paper. Unlike hemorrhoids, you will not feel or see a lump. The pain is typically more intense and knife-like rather than the dull ache of a swollen hemorrhoid.
- Perianal abscess: A swollen, red, warm, and extremely tender lump near the anus caused by an infected gland. It looks similar to a thrombosed hemorrhoid but tends to be more painful, may produce pus, and is often accompanied by fever.
- Anal fistula: A small tunnel between the inside of the anal canal and the skin near the anus, often the result of a previous abscess. It looks like a tiny opening on the skin that may drain fluid or blood intermittently.
- Rectal prolapse: This involves the full wall of the rectum sliding out through the anus, producing a larger, circular protrusion with concentric rings of tissue. A prolapsed hemorrhoid, by contrast, tends to have separate lobes or columns rather than a full ring. Rectal prolapse also involves more tissue and can appear even without straining.
- Anal warts: Small, flesh-colored or pinkish growths with a rough, cauliflower-like texture caused by human papillomavirus. They look quite different from the smooth, rounded surface of a hemorrhoid.
Any lump, bleeding, or pain around the anus that does not resolve within a couple of weeks, or that is accompanied by fever, drainage, changes in bowel habits, or unexplained weight loss, warrants a medical evaluation. Colorectal cancers can occasionally present with rectal bleeding that people dismiss as hemorrhoids, so persistent or recurrent bleeding should not be self-diagnosed indefinitely.
What Doctors See During an Exam
When you visit a doctor about a suspected hemorrhoid, the exam often starts with a simple visual inspection. External hemorrhoids and thrombosed hemorrhoids are usually diagnosed on sight. For internal hemorrhoids, the doctor may use a small, lighted tube called an anoscope, inserted a few inches into the anal canal. This gives a direct view of the internal hemorrhoidal tissue.
The videoanoscopy technique mentioned earlier provides an even more detailed picture and has been shown to detect hemorrhoids that other methods miss. In research comparing videoanoscopy with looking at the rectum through a retroflexed colonoscope, videoanoscopy found hemorrhoids in a significantly higher number of patients.4PubMed. Videoanoscopy: useful technique in the evaluation of hemorrhoids This matters because internal hemorrhoids that are not actively prolapsing can be invisible during a standard colonoscopy, leading patients to be told their symptoms have no visible cause.
Through the anoscope, internal hemorrhoids appear as cushion-like swellings, typically in three main clusters positioned around the clock face of the anal canal (roughly at the left lateral, right anterior, and right posterior positions). When these cushions are swollen and symptomatic, they look puffy and reddish, and the surface may show those cherry-red spots that signal a tendency to bleed. This is the clinical picture that guides treatment decisions, from dietary fiber and topical treatments for early-grade hemorrhoids to banding or surgery for advanced prolapse.
Why Hemorrhoids Are Normal Anatomy Gone Wrong
It is worth understanding that hemorrhoidal tissue itself is not abnormal. Everyone has these vascular cushions lining the anal canal. They are part of the normal anatomy that helps with continence, contributing to the fine seal that prevents small amounts of stool or gas from leaking.2Clinics in Colon and Rectal Surgery. Hemorrhoids The tissue becomes a medical problem only when it enlarges, bleeds, prolapses, or develops a clot.7PubMed Central. Pathophysiology of internal hemorrhoids
This distinction explains why the question “what does a hemorrhoid look like” is a bit of a trick: the tissue is always there, and you are only seeing it when something has gone wrong enough to make it visible or symptomatic. The transition from normal cushion to symptomatic hemorrhoid involves a breakdown in the connective tissue and smooth muscle that normally anchor the cushions in place, combined with engorgement of the blood vessels. Chronic straining, prolonged sitting, low-fiber diets, and aging all contribute to this process by stretching and weakening the supporting structures over time.
This also explains why hemorrhoids tend to recur. Treatments that shrink or remove the swollen tissue do not rebuild the weakened connective framework. Unless the underlying causes of strain and pressure are addressed through dietary changes and better bathroom habits, the remaining hemorrhoidal tissue can enlarge again and produce the same visual signs all over again. People who notice a new lump a year after treatment are often seeing the same anatomy responding to the same pressures, not necessarily a failure of the original treatment.