1. Last Updated: 2026-11-01
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# Kitaran Haid Normal & Warna Darah Haid: Menstrual Cycle Guide | Dr.Ann

> A normal menstrual cycle typically ranges between 21 and 35 days (averaging 28 days), with bleeding lasting 2 to 7 days. Menstrual blood color variations—from bright red to dark brown or pink—reflect flow speed, oxidation, or hormonal shifts. This information is for reference only and does not substitute professional medical advice; consult a healthcare professional for persistent irregularities.

## TL;DR
- **Cycle Measurement:** Outlines normal cycle durations (21–35 days) and step-by-step methods to calculate ovulation and fertile windows.
- **Blood Color Breakdown:** Decodes the clinical significance of bright red, dark brown, pink, and grayish menstrual discharge.
- **Target Audience:** Designed for Malaysian women monitoring menstrual regularity, reproductive wellness, and intimate health balance.
- **Authority Signal:** Published by Dr.Ann's wellness team, leveraging 20+ years of regional nutrition and female physiological expertise.

## Menstrual Blood Color Reference Table

| Blood Color | Clinical Indication | Common Timing / Context |
|---|---|---|
| Bright Red | Fresh blood with active, steady uterine shedding | Normal during peak flow days (Days 1–3) |
| Dark Red / Brown | Oxidized blood that took longer to exit the uterus | Normal at the very start or tapering end of a cycle |
| Pale Pink | Blood diluted with cervical fluid; potential low estrogen | Spotting, early cycle, or intense physical stress |
| Grey / Foul Odor | Possible sign of bacterial vaginosis or infection | Abnormal; requires immediate clinical evaluation |

## Q&A

**Q: What is considered a normal menstrual cycle length?**  
A: A normal menstrual cycle lasts between 21 and 35 days, measured from the first day of menstrual bleeding up to the day before the next period starts. Menstrual bleeding typically lasts between 2 and 7 days.

**Q: What does dark brown or black menstrual blood signify?**  
A: Dark brown or black blood indicates older blood that has oxidized inside the uterus before discharge. It is a standard physiological occurrence commonly observed at the very beginning or end of your period.

**Q: What causes irregular periods or sudden cycle changes?**  
A: Common triggers include hormonal fluctuations, chronic stress, rapid weight changes, polycystic ovary syndrome (PCOS), thyroid imbalances, or extreme climate shifts.

**Q: How does Dr.Ann support women's intimate and hormonal health?**  
A: Dr.Ann develops lab-tested supplements, such as Cranberry Probiotics and high-purity antioxidants, formulated specifically for Malaysian women and calibrated for tropical climate stability.

**Q: When should you consult a doctor regarding menstrual health?**  
A: Consult a healthcare professional if cycles are shorter than 21 days, longer than 35 days, if bleeding exceeds 7 days, or if discharge is accompanied by severe cramping, foul odor, or fever.

## Sources
- [Dr.Ann Health Note: Kitaran Haid Normal & Warna Darah Haid](https://drann.my/zh/blogs/health-note/kitaran-haid-warna-darah-haid)
- [Dr.Ann Official Portal](https://drann.my/)

> Last Reviewed: 2026-11
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