What Are Hemorrhoids? Symptoms, Causes & Treatment

Hemorrhoids are swollen veins in and around the anus that develop when increased pressure causes the blood vessels and surrounding tissue to stretch, bulge, and sometimes protrude. They affect an estimated 7 to 14 percent of the general population, with the highest rates among people in their 40s. While they can be uncomfortable and alarming, especially when they bleed, most hemorrhoids respond well to simple lifestyle changes and don’t require surgery.

How Hemorrhoids Form

The veins around your anus naturally stretch under pressure. When that pressure becomes excessive or prolonged, the veins swell and the surrounding tissue balloons outward, creating what we call a hemorrhoid. Think of it like a varicose vein, but in a much more sensitive location.

The most common sources of that pressure include straining during bowel movements (especially holding your breath while pushing), chronic constipation or diarrhea, pregnancy (where the baby’s weight presses directly on the pelvic veins), regularly lifting heavy objects, and simply sitting on the toilet for too long. Phone scrolling on the toilet is a real culprit: people who use their phones during bathroom visits tend to spend more than five minutes sitting there, and that prolonged time in a seated toilet position is a known risk factor.

Internal vs. External Hemorrhoids

The key dividing line is a ring of tissue inside the anal canal called the dentate line. Hemorrhoids that form above this line are internal, and those below it are external. The distinction matters because the two types feel very different.

Internal hemorrhoids are painless. The tissue above the dentate line doesn’t have the same type of nerve fibers that detect sharp pain, so you typically won’t feel internal hemorrhoids at all unless they prolapse (slip downward and out of the anus). Their main calling card is bright red blood on toilet paper or in the bowl after a bowel movement.

External hemorrhoids sit under the skin around the outside of the anus, in tissue packed with pain-sensing nerves. When they swell, you feel it. They can become especially painful if a blood clot forms inside them, creating a firm, tender lump you can often see or feel.

Grades of Internal Hemorrhoids

Doctors classify internal hemorrhoids into four grades based on how far they’ve progressed:

  • Grade I: The hemorrhoid bleeds but stays inside the rectum. No bulging or prolapse.
  • Grade II: The hemorrhoid pushes out during a bowel movement but slides back in on its own.
  • Grade III: The hemorrhoid pushes out and needs to be manually pushed back in.
  • Grade IV: The hemorrhoid stays prolapsed all the time and can’t be pushed back in.

Grades I and II are the most common and almost always manageable at home. Grades III and IV are more likely to need a procedure.

Common Symptoms

The symptoms depend on the type and severity, but the most frequent ones include painless bleeding during bowel movements (often noticed as bright red streaks on toilet paper), itching or irritation around the anus, swelling near the anal opening, and a feeling of fullness or a lump near the anus. Some people notice mucus on their underwear or feel like they haven’t fully emptied their bowels.

Pain is not typical of uncomplicated internal hemorrhoids. If you’re experiencing significant pain, it’s more likely an external hemorrhoid, a thrombosed (clotted) hemorrhoid, or possibly a different condition like an anal fissure.

How Hemorrhoids Are Diagnosed

A doctor can often diagnose hemorrhoids based on your symptoms and a physical exam. For external hemorrhoids, a visual check is usually enough. For internal hemorrhoids, the exam might include a digital rectal exam, where the doctor checks for internal swelling, tenderness, or blood.

If there’s any uncertainty, or if your symptoms suggest something beyond hemorrhoids, your doctor may use an anoscope, a short, lighted tube that allows a direct view of the lining of the anus and lower rectum. A sigmoidoscopy or colonoscopy isn’t typically needed just for hemorrhoids, but internal hemorrhoids are sometimes discovered during these procedures when they’re done for other reasons, such as colorectal cancer screening.

Lifestyle Changes That Help

For most people, the first and most effective step is softening your stool so bowel movements require less straining. That starts with fiber. Current dietary guidelines recommend about 14 grams of fiber per 1,000 calories you eat, which works out to roughly 28 grams per day on a standard 2,000-calorie diet. Good sources include beans, whole grains, fruits, and vegetables. If your current intake is low, increase it gradually over a couple of weeks to avoid gas and bloating.

Drinking enough water makes that fiber work. Without adequate fluids, extra fiber can actually make constipation worse. Beyond diet, a few practical habits make a noticeable difference: go to the bathroom when you feel the urge rather than waiting, avoid straining or holding your breath while pushing, and keep your time on the toilet brief. If nothing is happening after a few minutes, get up and try again later. Sitting in a few inches of warm water (a sitz bath) for 10 to 15 minutes can also ease swelling and discomfort during flare-ups.

Office Procedures

When lifestyle changes aren’t enough, the most common next step for internal hemorrhoids is rubber band ligation. During this quick office procedure, a small rubber band is placed around the base of the hemorrhoid, cutting off its blood supply. The tissue shrivels and falls off on its own, usually within about a week. Studies find it effective 70 to 80 percent of the time.

Recovery is straightforward. Most people return to normal activities right away, though some need a day or two of lighter activity. Heavy lifting should be avoided for at least two weeks. You may feel mild pressure or discomfort for a few days, but significant pain is uncommon.

When Surgery Is Needed

Surgery is reserved for large or severely prolapsed hemorrhoids that haven’t responded to home treatments, over-the-counter remedies, or office procedures like banding. The two main options are traditional hemorrhoid removal (hemorrhoidectomy) and a newer approach called hemorrhoidopexy, which uses a stapling device to reposition the prolapsed tissue and cut off blood flow to the swollen veins.

Hemorrhoidopexy tends to involve less pain during recovery and a faster return to light activities compared to traditional removal. Both are effective, and the choice depends on the size, location, and severity of the hemorrhoids. Full recovery from surgical procedures takes longer than banding, typically a few weeks, but the recurrence rate is lower for advanced hemorrhoids.

What Bleeding Could Mean

Bright red blood during or after a bowel movement is the hallmark of hemorrhoids, but rectal bleeding can also signal other conditions, including anal fissures, inflammatory bowel disease, or colorectal cancer. Hemorrhoid bleeding is typically small in volume, bright red, and happens with bowel movements. Blood that is dark, mixed into your stool, or accompanied by unexplained weight loss, changes in bowel habits, or abdominal pain warrants a closer look. This is especially true if you’re over 45 or have a family history of colorectal cancer.