Signs of high cortisol in women: periods, hair growth and other clues

Signs of high cortisol in women are mostly the same signs that men have, plus a few that involve periods and hair growth. They also overlap with polycystic ovary syndrome (PCOS), and a blood cortisol can read high in women for reasons that have nothing to do with disease, such as pregnancy or the pill.

This page covers what is different for women. The general picture is in the guide to high cortisol symptoms.

Cortisol

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A single blood cortisol can't diagnose or rule out Cushing's syndrome. Pregnancy and birth control pills can raise a blood result. Tell your clinician about both, and never stop a medicine for a test.

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Symptoms of high cortisol in women

NIDDK and MedlinePlus list these as the general signs of too much cortisol over a long time: weight gain, thin arms and legs, extra fat at the base of the neck or between the shoulders, easy bruising, wide purple stretch marks and weak muscles. Not everyone with Cushing’s has all of them.

For women, both sources add two more:

• Extra hair growth. NIDDK says women may have excess hair growth in places such as the neck, chest and thighs.
• Irregular or stopped periods. One review of adrenal conditions says menstrual irregularity is seen in 70 to 80 percent of women with Cushing’s syndrome. It suggests that high cortisol interferes with the hormones that drive the cycle.

None of these is a sign of high cortisol on its own. Irregular periods and extra hair growth are common, and the next section explains one of the main reasons.

Why high cortisol is often mistaken for PCOS

PCOS and Cushing’s syndrome share features: irregular periods, extra hair growth and metabolic changes. NIDDK says Cushing’s may be mistaken for PCOS or metabolic syndrome.

The same review says all the main PCOS diagnostic criteria require excluding Cushing’s syndrome first, and that a dexamethasone suppression test is used routinely to tell the two apart. It also reports one study in which half of the patients with Cushing’s disease, the pituitary form, were first diagnosed with PCOS. As a rough guide, signs of excess cortisol dominate in Cushing’s and signs of excess androgens dominate in PCOS.

That doesn’t mean PCOS is a cortisol problem. In a small study of 44 women with PCOS and 49 without, hair cortisol was higher in the PCOS group (130 versus 63 pg/mg of hair). The PCOS group also had a higher body mass index (about 30 versus 20). The authors read this as overactivity of the stress-hormone system. It is one small, cross-sectional study, so it shows an association and can’t say which came first. See PCOS and cortisol.

What causes high cortisol in women

The causes are the same as for men, with a few that matter more for women. The full list is on the page about the causes of high cortisol.

• Steroid medicines. NIDDK says the most common cause of Cushing’s syndrome is the long-term, high-dose use of glucocorticoid medicines, such as prednisone.
• Pregnancy. Pregnancy raises the carrier protein that holds most of the cortisol in blood, so total blood cortisol reads higher. A primary care review says 24-hour urine cortisol is normal in the first trimester and rises up to three-fold by term, to values seen in Cushing’s syndrome. Results in pregnancy are therefore read differently from results in other adults.
• Estrogen-containing pills. The same carrier protein rises with oral estrogen, including birth control pills, and gives a falsely elevated total cortisol, according to a review in Endocrine Reviews. A laboratory review says this applies to oral estrogen but not to estrogen through the skin. Any change to a medicine is a decision for your prescriber. Don’t stop a pill on your own. See birth control and cortisol.
• Conditions that raise cortisol without Cushing’s. The primary care review lists pregnancy, depression, alcohol dependence, uncontrolled diabetes, obesity and hypothalamic amenorrhea, among others. MedlinePlus calls this pseudo-Cushing syndrome and says the high levels may come and go.
• Tumors. Pituitary, adrenal and some other tumors cause the rarer, endogenous form.

Do women have higher cortisol than men?

Not as a rule. The Endocrine Reviews paper says men have higher mean peak, lowest-point and morning-rise cortisol than premenopausal women, and that the peak rise increases gradually with age in women but not men, so the difference is gone after menopause. It adds that results across the menstrual cycle have been inconsistent, and that sex-specific normal values for healthy people remain undefined.

A 2025 review points the other way for stress: it says women generally show higher cortisol responses to psychosocial stress than men. These findings don’t conflict. One describes baseline output, the other describes the response to a stressor.

The practical point is that online lists that call a cortisol level “high in women” aren’t backed by one agreed range. Use the range on your lab report, and see normal cortisol levels in women and men.

What menopause has to do with it

The sources we checked don’t show that high cortisol causes menopause symptoms. What they do show is smaller: the Endocrine Reviews paper says the sex difference in the cortisol peak is gone after menopause. For the symptoms themselves, see menopause and cortisol.

Getting it checked

A blood cortisol is a snapshot and can be read high or low for many reasons, so clinicians use more than that when they suspect Cushing’s. NIDDK says they usually do two of three tests: a 24-hour urine test, a late-night saliva test, and a low-dose dexamethasone suppression test. The testing for high cortisol page explains each.

Before any test, tell the clinician:

• If you are pregnant or might be.
• If you take birth control pills or other estrogen, and which kind.
• Every steroid you use, including pills, injections, inhalers and creams.
• The dates of your last periods and any change in their pattern.

A blood cortisol can still give you something concrete to bring to the visit. Note the time of day it was taken, because the same body gives different values in the morning and the afternoon.

Questions people ask

What are the symptoms of high cortisol in females?

The ones sources list for everyone, such as easy bruising, wide purple stretch marks and weak muscles, plus extra hair growth and irregular or stopped periods. These are signs to raise with a clinician, not a way to confirm high cortisol.

Can high cortisol stop your period?

NIDDK says periods may become irregular or stop in Cushing’s syndrome. Many other things can also change periods, so a change in your cycle isn’t a reason to assume high cortisol.

Can PCOS cause high cortisol?

One small study found higher hair cortisol in women with PCOS, but that is an association in a small group. The review above treats PCOS and Cushing’s as separate conditions that have to be told apart.

Keep reading

• High cortisol symptoms

  The signs doctors link to too much cortisol, and what they are not.

• Causes of high cortisol

  Medicines, conditions and normal ups and downs.

• PCOS and cortisol

  How the two overlap and how they are told apart.

• Normal cortisol levels in women and men

  Published ranges and why labs differ.

• Testing for high cortisol

  Which test answers which question.