Hemorrhoids range from a mild nuisance you barely notice to an intensely painful condition that can land you in an emergency room. About one in four adults worldwide has hemorrhoids at any given time, and most cases stay on the milder end of the spectrum. But left unchecked, hemorrhoids can progress through distinct stages, develop blood clots, become strangulated, or bleed enough over time to cause anemia. Here’s what the full range actually looks like.
The Four Grades of Internal Hemorrhoids
Internal hemorrhoids, the type that form inside the lower rectum, are classified on a four-point scale based on how far they’ve moved out of position.
- Grade I: The hemorrhoid is visible on examination but stays inside the rectum. You might notice occasional bleeding on toilet paper but feel no pain or bulging.
- Grade II: The hemorrhoid pushes out during a bowel movement or straining, then slides back in on its own. Bleeding is more common, and you may feel a brief sense of fullness or pressure.
- Grade III: The hemorrhoid protrudes and won’t go back in unless you physically push it. This is where daily discomfort becomes harder to ignore, with more frequent bleeding, mucus discharge, and difficulty keeping the area clean.
- Grade IV: The hemorrhoid is permanently prolapsed outside the body and can’t be pushed back in at all. Grade IV hemorrhoids are the most likely to develop serious complications and typically require surgery.
Most people who search “how bad can hemorrhoids get” are somewhere between Grade II and III, noticing that symptoms are worsening over time. The progression isn’t inevitable. Dietary changes, increased water intake, and avoiding prolonged straining can keep lower-grade hemorrhoids from advancing. But once you’re at Grade III or IV, conservative measures alone are less likely to resolve the problem.
Thrombosed Hemorrhoids: The Sudden Pain Crisis
A thrombosed hemorrhoid is an external hemorrhoid in which a blood clot has formed. It’s one of the most acutely painful hemorrhoid complications, and it can happen without warning. The hallmark sign is a firm, bluish-purple lump on or near the anus that appears suddenly and hurts intensely, especially when sitting, walking, or having a bowel movement.
Pain peaks in the first 48 hours. The lump is often visible and tender to the touch. Sometimes the clot ruptures on its own, causing a burst of bleeding that actually provides some relief as the pressure drops. Most thrombosed hemorrhoids resolve within a few weeks, but the acute phase can be debilitating enough to keep you home from work. If you catch it early (within the first couple of days), a doctor can make a small incision to remove the clot and provide near-immediate pain relief.
Strangulated Hemorrhoids
This is rarer but more dangerous. A strangulated hemorrhoid happens when a prolapsed internal hemorrhoid gets trapped outside the body and the anal muscles clamp down on it, cutting off its blood supply. The tissue swells, turns dark, and becomes extremely painful. Without blood flow, the trapped tissue can begin to die. This progression toward tissue death is a medical emergency that requires prompt treatment to prevent infection or gangrene.
Strangulation is most likely with Grade III or IV hemorrhoids, where the tissue is already protruding significantly. The pain is constant and severe, not tied to bowel movements the way typical hemorrhoid discomfort is.
Chronic Bleeding and Anemia
A single episode of hemorrhoid bleeding is rarely dangerous. The real risk comes from months or years of small, repeated blood loss that you might dismiss as “just hemorrhoids.” Over time, this steady drip can deplete your iron stores and lead to iron deficiency anemia, leaving you fatigued, pale, short of breath, and unable to concentrate.
Research on patients with iron deficiency anemia found that internal hemorrhoids were present in roughly 23 to 43 percent of cases, depending on the study population. In many of those cases, hemorrhoids were identified as a likely contributor to the anemia. This is especially common in people who’ve had bleeding hemorrhoids for years without seeking treatment. The bleeding itself may seem minor (a few drops on the toilet paper, streaks on stool), but the cumulative effect on your blood counts can be significant.
If you’ve been bleeding regularly for weeks or months and notice increasing fatigue or weakness, those symptoms may be connected.
When Hemorrhoids Become an Emergency
Most hemorrhoids are uncomfortable but not dangerous. A smaller number cross into emergency territory. The Mayo Clinic identifies these red flags for seeking immediate care: large amounts of rectal bleeding, lightheadedness, dizziness, or faintness. These signs suggest blood loss significant enough to affect your circulation.
Other situations that warrant urgent attention include a strangulated hemorrhoid with worsening pain and discoloration, a thrombosed hemorrhoid with unbearable pain in the first 48 hours (when in-office clot removal is most effective), or any rectal bleeding accompanied by fever, which could signal infection.
What Surgery Looks Like at the Worst Stage
Grade IV hemorrhoids and severe Grade III cases that haven’t responded to less invasive treatments typically end up requiring a hemorrhoidectomy, the surgical removal of hemorrhoid tissue. It’s the most effective long-term solution, but it also has the longest recovery.
The average recovery takes two to four weeks, with most people reporting the pain resolves around the two-week mark. Returning to strenuous physical activity or manual labor can take six to eight weeks. The surgery itself is straightforward, but the recovery is notoriously uncomfortable because the surgical site is in an area that’s constantly in use.
Long-term complications are uncommon but possible. Excessive scarring can narrow the anal canal, a condition called anal stenosis that makes bowel movements difficult. In rare cases, nerve or muscle damage during the procedure can affect your ability to fully control bowel movements. These risks are part of why doctors typically exhaust less invasive options (rubber band ligation, infrared treatment, lifestyle changes) before recommending full surgery.
How to Keep Hemorrhoids From Getting Worse
The gap between a Grade I hemorrhoid and a surgical case is wide, and most people never cross it. The factors that push hemorrhoids to progress are consistent and preventable: chronic straining during bowel movements, prolonged sitting on the toilet (put the phone down), low fiber intake, dehydration, and ignoring symptoms for years.
Fiber intake of 25 to 30 grams per day softens stool and reduces straining. Drinking adequate water supports that process. Avoiding sitting on the toilet for more than a few minutes at a time reduces pressure on the veins. Over-the-counter treatments like witch hazel pads and hydrocortisone creams manage symptoms in the short term but don’t reverse the underlying problem.
If you’re noticing that bleeding, pain, or prolapse is gradually getting worse over weeks or months, that trajectory is unlikely to reverse on its own. Early intervention at Grade II or III is simpler, less painful, and far less disruptive than waiting until surgery becomes the only viable option.