Short Menstrual Period (1–1.5 Days): Possible Causes and Evaluation
Potential Reasons
- Hormonal Imbalance: PCOS, thyroid dysfunction, perimenopause.
- Stress: Disrupts HPO axis.
- Infection/STI: Endometritis, cervicitis.
- Medications: Hormonal contraceptives, emergency contraception.
- Recent Pregnancy Loss: Miscarriage/ectopic disrupts cycle.
- Uterine Structural Issues: Polyps, fibroids, adenomyosis.
When to See a Doctor
If change is sudden, persistent, or accompanied by other symptoms (pain, heavy bleeding, infertility concerns). Evaluation: history, exam, labs (TSH, prolactin, FSH/LH, estradiol), ultrasound.
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