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ป้องกัน-NCDs hemorrhoids
NCD Prevention TH cb093 July 9, 2026 5 min read
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Hemorrhoids: What They Are, Which Symptoms to Watch, and How to Manage Them

A short guide to hemorrhoids, covering what they are, how internal and external ones differ, what raises the risk, how they are managed with simple measures first, and why rectal bleeding should not be assumed to be just hemorrhoids.

Summary Full

What You May Be Noticing

You spot bright red blood on the toilet paper, or feel a tender lump at the edge of your anus, some itching, or discomfort when you sit for a while. These symptoms are very common, and they often come from hemorrhoids. Still, the first thing worth saying is not to assume the blood is definitely hemorrhoids, because other conditions can cause rectal bleeding too.

Hemorrhoids are swollen blood vessels in the lower rectum and around the anus, one of the most common conditions people deal with. The good news is that most improve with simple measures, and understanding how they work helps you handle them in the right way.

Internal and External Hemorrhoids

Internal hemorrhoids form inside the rectum where there are fewer pain nerves, so they usually do not hurt, and their most common sign is bright red blood with a bowel movement. External hemorrhoids form under the skin around the anus, so they can feel like a tender lump and cause itching or irritation, and if a clot forms inside one (a thrombosed hemorrhoid) it can become acutely painful.

Why They Happen

Hemorrhoids are usually linked to increased pressure around the anus. Common contributors include straining, constipation or ongoing diarrhea, a low fiber diet, prolonged sitting including on the toilet, pregnancy, regularly lifting heavy loads, and aging. This is why keeping bowel movements soft and strain free sits at the heart of preventing and managing them.

How They Are Diagnosed

Diagnosis relies on a history and a physical exam by a doctor, who is not only confirming hemorrhoids but also ruling out other causes of the same bleeding. This is the point to take seriously: do not assume rectal bleeding is hemorrhoids, because other conditions, including colorectal cancer, can bleed too, so new or persistent bleeding should be checked by a doctor, especially if you are over 40 or have other risk factors.

How They Are Managed

The ASCRS 2018 guidelines place conservative care first for most hemorrhoids. That means adding dietary fiber and fluids so stools stay soft and pass without straining, avoiding long strained sitting on the toilet, and using a sitz bath for comfort, with short term topical relief only under a doctor’s or pharmacist’s guidance. For internal hemorrhoids that keep causing symptoms, a doctor may consider an office procedure such as rubber-band ligation, and surgery is reserved for severe or unresponsive cases. Most hemorrhoids improve with the simple measures, so surgery is usually not the first step, and any procedure is decided together with a doctor.

Start Tomorrow, One Step First

Eat more fiber and drink enough water to keep stools soft, do not strain or sit too long on the toilet, move more during the day, and treat constipation early. And if you have rectal bleeding that is new or persistent, or you are over 40, see a doctor to get it checked rather than guessing.

This content is general information for health care, not advice that replaces seeing a doctor. Diagnosing hemorrhoids and finding the cause of any rectal bleeding should always be done together with a doctor.

This summary is for understanding, not medical advice, and should be reviewed by a professional before being applied in real life. The full version includes complete reasoning and research.

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Reviewed by Health Coach: A888

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References for this article

  1. 1 Davis BR et al. The American Society of Colon and Rectal Surgeons Clinical Practice Guidelines for the Management of Hemorrhoids (Dis Colon Rectum 2018, PMID 29420423) pubmed.ncbi.nlm.nih.gov
  2. 2 StatPearls (NCBI Bookshelf NBK537182): Hemorrhoids ncbi.nlm.nih.gov
  3. 3 NIDDK (NIH): Hemorrhoids niddk.nih.gov

Reviewed by Health Coach: A888