What are Irregular Periods?Menstrual cycles that vary significantly from the typical 21-35 day pattern, or changes in flow, duration, or missed periods.Common Causes:Hormonal shifts: Puberty, approaching menopause, Polycystic Ovary Syndrome (PCOS - common in India), thyroid problems.Lifestyle factors: Stress, major weight changes (gain or loss), extreme exercise.Uterine issues: Fibroids or polyps.Pregnancy or breastfeeding.Medications: Including changes in birth control.When to See a Doctor:If your periods suddenly become irregular, you miss periods for over 90 days (and aren't pregnant), they're too frequent (less than 21 days apart) or too infrequent (more than 35 days apart), bleeding is very heavy/long, occurs between periods or after menopause, or if you have severe pain.Diagnosis & Treatment:Doctors diagnose based on your history, a pelvic exam, blood tests (for hormones, pregnancy), and often an ultrasound. Treatment depends on the cause and might involve lifestyle changes, hormonal birth control to regulate cycles, or treating specific conditions like thyroid issues or PCOS.Essentially, if you notice persistent changes in your cycle that concern you, it's best to consult a gynecologist.