Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Anovulation
Introduction
Overview
Overview
Anovulation is absence of ovulation when it would be normally expected (in a post-menarchal, premenopausal woman).
References
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Cafer Zorkun, M.D., Ph.D. [2]
Historical Perspective
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References
Classification
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Pathophysiology
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References
Causes
Overview
Causes
Anovulation can result from a variety of factors:
- Taking birth control pills
- Stress, new environment
- Chronic mental illness, such as depression
- Chronic physical illness, such as inflammatory bowel disease, poorly controlled diabetes, tuberculosis, or anemia
- Undernutrition, specific nutrient deficiencies, inadequate body fat
- Prolonged or continuous physical exertion
- Various pharmaceutical (especially phenothiazines) and recreational drugs
- Hormone imbalances, such as prolactin or testosterone excess (e.g., polycystic ovary syndrome), hyper– or hypothyroidism, adrenal insufficiency or Cushing’s syndrome.
- Pituitary failure or ovarian failure. [1]
Some anovulatory women may have two or more contributing conditions. Anovulation can generally be reversed by ameliorating the causal factors (except in cases of permanent pituitary or ovarian failure).
References
- ↑ Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:77 ISBN 1591032016
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Cafer Zorkun, M.D., Ph.D. [2]
Epidemiology and Demographics
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Risk Factors
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Screening
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Differentiating Anovulation from other Diseases
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Natural History, Complications and Prognosis
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Diagnosis
Diagnosis
History and Symptoms | Physical Examination | Laboratory Findings | X Ray | CT | MRI | Ultrasound | Other Imaging Findings | Other Diagnostic Studies
Treatment
Treatment
Medical Therapy | Primary Prevention | Secondary Prevention | Cost-Effectiveness of Therapy | Future or Investigational Therapies
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]