Missed or Late Periods

Missed or late periods, also known as amenorrhea or oligomenorrhea, refer to the absence or delay of menstrual periods in women.

Causes

  • Hormonal Imbalance: Changes in hormone levels, particularly estrogen and progesterone, can disrupt the menstrual cycle, leading to missed or late periods.
  • Stress: High levels of stress can affect the hypothalamus, a part of the brain that regulates hormones, leading to changes in menstrual cycles.
  • Weight Changes: Significant weight gain or loss can impact hormone production and lead to irregular periods.
  • Pregnancy: Pregnancy is a common cause of missed periods, as the body produces human chorionic gonadotropin (hCG) instead of estrogen and progesterone.
  • Polycystic Ovary Syndrome (PCOS): A hormonal disorder that can cause irregular ovulation and menstruation.
  • Thyroid Disorders: Both hypothyroidism (underactive thyroid) and hyperthyroidism (overactive thyroid) can affect menstrual cycles.
  • Menopause or Perimenopause: The transition to menopause can cause irregular periods, including missed or late periods.

Symptoms

  • Absence of menstruation for three months or more
  • Infrequent or light periods
  • Heavy or prolonged bleeding
  • Pelvic pain or cramping
  • Bloating and breast tenderness
  • Mood changes, such as anxiety or depression

Diagnosis

To diagnose the cause of missed or late periods, a healthcare provider may perform:

  • Physical Exam: To check for any underlying medical conditions.
  • Medical History: To review menstrual history, pregnancy status, and other health factors.
  • Hormone Level Tests: To measure levels of estrogen, progesterone, and other hormones.
  • Pelvic Exam: To check for any abnormalities in the reproductive organs.
  • Imaging Tests: Such as ultrasound or MRI to visualize the reproductive organs.

Treatment

Treatment for missed or late periods depends on the underlying cause and may include:

  • Hormonal Birth Control: To regulate menstrual cycles and hormone levels.
  • Fertility Medications: To stimulate ovulation in women with PCOS or other fertility issues.
  • Thyroid Medication: To treat thyroid disorders and regulate hormone production.
  • Lifestyle Changes: Such as stress management, weight loss or gain, and exercise to help regulate menstrual cycles.

Article last updated on: 6th June 2025.
If you have any feedback, please get in touch.

Not just another AI Scribe.
Differentials. Guidance. Transcriptions. Notes.

Medical Disclaimer

The information provided is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay seeking it because of something you have read on this site. We we do not guarantee, and assume no legal liability or responsibility for the accuracy, currency, or completeness of the information provided.