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Period Blood Clots: What Is Normal vs. When to See a Doctor
Menstrual blood clots are gel-like clumps of blood, tissue, and fibrin formed during heavy flow. Understanding clot size and accompanying symptoms helps determine when medical evaluation is needed.
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मुख्य बातें (Key Takeaways)
- Coagulation cascades and uterine fibrinolysis during endometrial shedding.
- Normal small clot size vs abnormal quarter-sized (2.5 cm) threshold.
- Associated symptoms of heavy menstrual bleeding and iron-deficiency anemia.
- Underlying conditions like fibroids, adenomyosis, polyps, or hormonal imbalance.
Why Does Menstrual Blood Clot?
During menstruation, endometrial tissue sheds rapidly. The uterus produces natural anticoagulants (plasminogen) to keep blood flowing smoothly. However, on heavy flow days, blood sheds faster than endogenous enzymes can break down fibrin, leading to visible gel-like blood clots.
Normal Clot Size vs. Diagnostic Red Flags
Small, jelly-like clots ranging from pea-sized to dime-sized on peak flow days are common and usually harmless. However, passing clots larger than a US quarter (2.5 cm / 5-rupee / 50p coin) frequently or soaking through a pad/tampon every hour for 2+ consecutive hours is a sign of menorrhagia requiring clinical evaluation.
Underlying Medical Conditions Associated with Heavy Clotting
1. Uterine Fibroids (Submucosal or Intramural leiomyomas)
2. Adenomyosis (Myometrial endometrial infiltration)
3. Endometrial Polyps or Hyperplasia
4. PCOS or Anovulatory Bleeding
5. Bleeding Disorders (such as von Willebrand disease)
6. Early Pregnancy Complications or Miscarriage
डॉक्टर से कब परामर्श लें (When to See a Doctor)
- •Passing blood clots larger than a US quarter (2.5 cm) frequently.
- •Soaking through 1 or more pads or tampons every hour for 2 consecutive hours.
- •Dizziness, extreme fatigue, pale skin, or shortness of breath (signs of anemia).