A menstrual cycle can change occasionally, but a sudden or persistent change in your usual pattern may deserve attention. Some changes are linked to stress or natural hormonal fluctuations, while others may be caused by medical conditions.
1. Stress: Emotional pressure, lack of sleep and major life changes can affect the hormones that regulate ovulation.
2. Pregnancy: A missed or unusually light period may be an early sign of pregnancy. A pregnancy test can help clarify the situation.
3. Polycystic ovary syndrome: PCOS can affect ovulation and cause irregular periods. Other possible features include acne, excess facial hair and difficulty managing weight.
4. Thyroid problems: An overactive or underactive thyroid can interfere with menstrual regularity.
5. Major weight changes: Rapid weight loss, weight gain or inadequate food intake can affect reproductive hormones.
6. Intense exercise: Very demanding physical activity, especially when combined with insufficient food intake, can disrupt menstrual cycles.
7. Perimenopause: In the years before menopause, hormone levels fluctuate and periods may become less predictable.
What should you do? Record the dates your periods begin and end, along with changes in flow, pain and other symptoms. If irregularity continues, arrange a medical assessment. A clinician may recommend a pregnancy test, blood tests or an ultrasound depending on your symptoms.
Seek urgent care if you experience very heavy bleeding, severe pelvic pain, fainting or possible pregnancy accompanied by pain or bleeding.
Final thoughts: An irregular period is not always a sign of serious illness, but a sudden change should not automatically be ignored. Understanding the cause can help you receive appropriate care and protect your reproductive health.
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