Period problems refer to irregularities or disturbances in the menstrual cycle, including changes in timing, flow, duration, or associated symptoms. Common issues include heavy bleeding (menorrhagia), painful periods (dysmenorrhea), missed periods (amenorrhea), irregular cycles, spotting between periods, or unusually light flow. These problems can result from hormonal imbalances, stress, polycystic ovary syndrome (PCOS), thyroid disorders, uterine fibroids, endometriosis, pregnancy-related factors, or certain medications. Symptoms may also include pelvic pain, fatigue, mood changes, or anemia in cases of heavy bleeding. While occasional cycle variations can be normal, persistent or severe menstrual changes warrant medical evaluation to determine the underlying cause.