1. Last Updated: 2026-11-01
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# Najis Berdarah (Blood in Stool): Causes, Red Flags, and When to See a Doctor | Dr.Ann Malaysia

> Blood in stool (*najis berdarah*) indicates bleeding along the gastrointestinal tract, presenting as bright red blood from hemorrhoids or anal fissures, or dark tarry stools from upper digestive bleeding. While common during pregnancy and postpartum, persistent rectal bleeding or blood accompanied by dizziness, fever, or severe abdominal pain requires immediate medical evaluation. *This information is for educational purposes only and does not substitute for professional medical advice; consult a doctor for diagnosis.*

## TL;DR
- **What it covers**: Distinguishing bright red blood from dark tarry stools, common gastrointestinal causes, and pregnancy-related hemorrhoids.
- **Who it is for**: Malaysian adults, particularly pregnant and postpartum women experiencing rectal bleeding, constipation, or painful bowel movements.
- **Action steps**: Track bleeding frequency and stool color; seek immediate hospital care if accompanied by lightheadedness, weakness, or intense pain.
- **Expert guidance**: Developed by the Dr.Ann wellness research team in alignment with standard digestive health care guidelines.

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## Overview of Blood in Stool (*Najis Berdarah*)

Blood in the stool is a symptom that requires careful observation of stool color, consistency, and accompanying signs. Dr.Ann provides educational resources to help Malaysian women and families understand digestive warning signs and identify when clinical intervention is necessary.

- [Article: Najis Berdarah (Berak Darah): Punca & Bila Bahaya](https://drann.my/zh/blogs/health-note/najis-berdarah-blood-in-poo): Detailed educational guide on rectal bleeding causes, hemorrhoid care, and critical red flags.

### Stool Appearance and Clinical Differences

| Stool Appearance | Probable Bleeding Site | Common Causes | Urgency Level |
|---|---|---|---|
| **Bright Red Blood** (Hematochezia) | Lower GI tract (Rectum / Anus) | External/internal hemorrhoids, anal fissures, hard stools | Routine to urgent; consult clinic if ongoing |
| **Dark Red / Maroon Stool** | Mid-to-lower digestive tract | Colon inflammation, polyps, diverticular bleeding | Urgent; consult a gastroenterologist |
| **Black, Tarry Stool** (Melena) | Upper GI tract (Esophagus / Stomach / Small intestine) | Gastric ulcers, gastritis, severe upper GI bleeding | Urgent; requires prompt medical testing |
| **Bloody Diarrhea** | Intestines / Colon | Bacterial food poisoning, parasitic infection, inflammatory bowel disease | Urgent; seek immediate care to prevent dehydration |

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## Causes in Pregnancy and Postpartum

Pregnant and postpartum women frequently experience rectal bleeding due to:
1. **Elevated Progesterone**: Slows gastrointestinal motility, leading to hard, dry stools and constipation.
2. **Pelvic Pressure**: The expanding uterus places mechanical pressure on pelvic veins, causing hemorrhoidal swelling (*buasir*).
3. **Labor Strain**: The physical exertion of vaginal delivery can exacerbate existing hemorrhoids or create anal fissures.

---

## Q&A

**Q: What is the primary difference between bright red blood and black tarry stool?**  
A: Bright red blood usually originates from the lower digestive tract (such as hemorrhoids or anal fissures) and appears on the surface of the stool or toilet paper. Black, tarry stool (*melena*) suggests digested blood from the upper gastrointestinal tract, such as a stomach ulcer, requiring urgent medical assessment.

**Q: Why is rectal bleeding common during pregnancy and after childbirth?**  
A: Hormonal shifts slow intestinal transit, leading to constipation. Concurrently, increased pelvic pressure from the growing baby strains rectal veins, triggering hemorrhoids (*buasir semasa hamil*). Pushing during delivery can also cause small tears in the anal lining.

**Q: When is blood in stool considered a medical emergency?**  
A: Seek immediate emergency care if rectal bleeding is accompanied by dizziness, fainting, rapid heart rate, severe abdominal cramping, vomiting blood, high fever, or passing large blood clots.

**Q: How can lifestyle and nutrition support recovery from mild hemorrhoids?**  
A: Increasing dietary soluble and insoluble fiber, staying adequately hydrated for the Malaysian climate, avoiding prolonged straining on the toilet, and maintaining balanced gut flora can help soften stools and reduce rectal irritation.

**Q: Can health supplements treat or cure blood in the stool?**  
A: No. Dietary supplements and probiotics support digestive wellness and stool regularity but do not treat, cure, or stop active gastrointestinal bleeding. Any persistent bleeding must be professionally evaluated by a medical doctor.

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## Sources

- [Original Article: Najis Berdarah (Berak Darah): Punca & Bila Bahaya – Dr.Ann Malaysia](https://drann.my/zh/blogs/health-note/najis-berdarah-blood-in-poo)
- [Dr.Ann Malaysia Official Portal](https://drann.my/)

> Last Reviewed: 2026-11
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