Polycystic ovary syndrome (PCOS) is a common endocrine disorder that can involve irregular menstrual cycles, acne, excess facial or body hair, infertility, insulin resistance and elevated androgen levels. Some people with PCOS also report significant fatigue.
Does PCOS Cause “Adrenal Fatigue”?
No established evidence shows that PCOS causes the adrenal glands to become exhausted. “Adrenal fatigue” is not a recognized endocrine diagnosis. However, the adrenal glands do produce androgens such as DHEA-S, and adrenal androgen excess can contribute to the biochemical picture in some patients with PCOS.
Endocrine Society: Adrenal Fatigue
Why DHEA-S May Be Checked in PCOS
DHEA-S is produced primarily by the adrenal glands. When androgen excess is suspected, clinicians may measure testosterone and, in selected patients, DHEA-S or other hormones to help characterize the source of excess androgen activity and exclude other conditions.
Why People With PCOS May Feel Tired
Fatigue in PCOS can have many contributors, including poor sleep, obstructive sleep apnea, iron deficiency, heavy or irregular bleeding, insulin resistance, depression or anxiety, medication effects, thyroid disease and lifestyle factors. These possibilities are more useful to evaluate than assuming adrenal exhaustion.
PCOS and Thyroid Disease
Symptoms of hypothyroidism can overlap with PCOS, including weight change, menstrual disturbance, low energy and changes in mood. Thyroid testing may therefore be appropriate during an endocrine evaluation when symptoms suggest it.
How PCOS Is Evaluated
Diagnosis is based on the overall clinical picture and exclusion of other causes of ovulatory dysfunction or androgen excess. Depending on the patient, testing may include pregnancy testing, thyroid function, prolactin, androgen measurements and metabolic risk assessment.
Treatment Is Based on the Patient’s Goal
Management differs depending on whether the primary concern is menstrual regularity, acne or excess hair, fertility, metabolic health, weight management or another symptom. Treatment may include lifestyle measures, hormonal contraception, insulin-sensitizing therapy, fertility treatment or other targeted interventions when appropriate.
When Adrenal Testing Is Needed
Adrenal testing is not routinely performed because of fatigue alone. It is considered when symptoms, examination or laboratory findings raise concern for a recognized adrenal disorder.
For persistent fatigue or suspected hormone imbalance, see our hormone deficiency symptoms guide and adrenal and cortisol evaluation.
