For many adults, menstrual cycles occur about every 21 to 35 days, and bleeding commonly lasts 2 to 7 days. Patterns vary; speak with a clinician about persistent changes or concerns.

Irregular periods can sometimes be linked with infrequent ovulation, which may make conception less predictable. The cause and effect on fertility vary; a gynecologist can discuss evaluation and options suited to your goals.

Evaluation depends on your symptoms and medical history. It may include a physical examination, selected blood tests such as thyroid or hormone tests, and pelvic imaging when clinically appropriate.

Coverage depends on your policy, diagnosis, and the care recommended. The hospital insurance desk can help check your policy and explain available cashless or payment options before planned care.

Possible causes include pregnancy, stress, significant weight or exercise changes, PCOS, thyroid conditions, some medicines, and other health factors. A clinician can help identify the cause rather than relying on symptoms alone.

Arrange a medical assessment if heavy bleeding, severe pain, bleeding between periods, or a persistent change in your cycle is affecting daily life. Seek urgent care for very heavy bleeding with faintness, severe weakness, or intense sudden pain.

PCOS can be associated with irregular or infrequent periods, but it is only one possible cause. Diagnosis is based on an appropriate clinical assessment; treatment is individualized to symptoms and health goals.

Bring a list of medicines, relevant medical records and test results, and notes about your cycle dates and symptoms if available. You can also write down questions and mention your health or fertility goals.