What Is an External Hemorrhoid?

November 25, 2025

What Causes an External Hemorrhoid?

External hemorrhoids develop when pressure builds up in the veins surrounding the anus. This pressure can come from straining during bowel movements, sitting for long periods, lifting heavy objects, pregnancy, or chronic constipation. Over time, this added strain weakens the vessel walls, causing them to swell and bulge outward.

Lifestyle factors such as a low-fiber diet or dehydration can also make bowel movements harder and more likely to trigger hemorrhoid flare-ups. Genetics, age, and obesity may further increase your risk.

Common Symptoms

Because external hemorrhoids are located under the skin near the anus, they can be quite noticeable. Common symptoms include:

  • Pain or tenderness, especially while sitting or during bowel movements

  • Swelling or a small lump around the anus

  • Itching or irritation in the anal area

  • Bright red blood on toilet paper or in the toilet bowl

In some cases, a blood clot may form inside an external hemorrhoid, creating what’s known as a thrombosed hemorrhoid - which can cause sudden and intense pain.

Diagnosis & Treatment Options

A proctologist can diagnose external hemorrhoids through a simple visual and physical examination. While they can be painful, most external hemorrhoids respond well to conservative treatments.

  • Home care - Warm sitz baths, over-the-counter creams, and keeping the area clean can help soothe irritation and promote healing.

  • Dietary and lifestyle changes - Increasing fiber, staying hydrated, and avoiding prolonged sitting can prevent future flare-ups.

  • Office procedures - If symptoms persist, your proctologist may recommend in-office treatments such as excision (removal of a painful clot) or other minor interventions to reduce swelling and discomfort.

When to See a Proctologist

You should see a proctologist if you experience severe pain, recurrent bleeding, or if home treatments aren’t helping. It’s important to rule out other conditions that can cause similar symptoms, such as fissures or infections. With expert care, relief is possible - and often faster than you might expect.