Menstrual Cycle Irregularities: When to See a Doctor

You cannot voluntarily control your menstrual cycle length, but significant irregularities warrant medical evaluation. Your cycle is a vital sign of overall health.

Consult a Healthcare Provider If:

• Periods are consistently shorter than 21 days or longer than 35 days apart.
• Bleeding lasts more than 7 days or is excessively heavy (soaking a pad or tampon hourly).
• Periods stop for more than 3 months (and you're not pregnant).
• Severe pain (dysmenorrhea) disrupts daily life.
• Bleeding occurs between periods or after sex.
• Sudden change in your usual cycle pattern.

Common Causes

Hormonal imbalances (such as PCOS or thyroid disorders), stress, significant weight changes, medications, and perimenopause are frequent culprits. Tracking your cycle helps your provider identify patterns and recommend appropriate testing or treatment.