Common Causes of High Cortisol and Their Symptoms

medica-seed-editor · November 3, 2026, 4:12am

The causes of high cortisol range from psychological stress and glandular medical issues to the use of certain medications, which can lead to various health symptoms.

What is the Cortisol Hormone?

Known as the stress hormone, this steroid hormone is produced by the adrenal glands located above the kidneys, regulated by the pituitary gland and the hypothalamus in the brain. It helps regulate blood pressure, glucose use for energy production, and the reduction of inflammation, in addition to supporting the sleep-wake cycle.

Common Causes of High Cortisol

Several factors can lead to an increase in the levels of this hormone in the body, most notably:

Stress and Pressure: Psychological stress or daily physical exhaustion is a primary reason for increased secretion.
Cushing’s Syndrome: A disorder resulting from excessive hormone levels due to tumors in the pituitary or adrenal glands, or ectopic tumors.
Medications: Long-term use of synthetic cortisol replacements (corticosteroids) to treat conditions such as chronic arthritis and asthma.
Physical Activity: High-intensity sports like running and weightlifting can cause levels to rise; any athletic activity exceeding one hour may also lead to an increase.

High Cortisol Symptoms

Signs vary based on the level of elevation and include:

Physical and Skin Changes

Weight Gain: The metabolic rate decreases and appetite increases, leading to fat accumulation in the face, abdomen, and between the shoulders.
Skin Problems: The skin becomes thin and weak, with purple stretch marks appearing on the arms, thighs, or abdomen; acne and facial flushing may also occur.
Other: Leg swelling and weakness in the thigh and upper arm muscles.

Psychological and Mental Effects

Hormonal imbalance leads to mood swings, anxiety, depression, and difficulty concentrating and sleeping, along with a general feeling of weakness.

Gender-Specific Effects

High cortisol causes in women: The ovaries may be affected, causing irregular or absent menstrual cycles, difficulty conceting, and increased risks of preeclampsia, premature birth, or miscarriage. Excess hair may appear on the neck and face (hirsutism) or baldness may occur.
High cortisol in men: Testicular functions may be affected, leading to decreased sex drive, erectile dysfunction, and a low sperm count.

Long-Term Health Complications

If the elevation continues without intervention, serious risks may emerge:

Diabetes: Insulin resistance increases and glucose accumulates, raising blood sugar.
Blood Pressure: Pressure on the blood vessels and heart increases; 80% of those with Cushing’s syndrome suffer from hypertension.
Bones: Bone density and mass decrease, increasing the likelihood of fractures (osteoporosis).

High Cortisol Treatment and Control

Treatment depends on the cause and may include:

Behavioral Adjustments: Practicing yoga and breathing exercises, improving sleep quality, eating a diet rich in fiber and omega-3, and avoiding caffeine.
Pharmacological Intervention: Using antagonists such as ketoconazole (dose 600-800 mg daily), metyrapone (dose 500-4500 mg daily), or mifepristone, which inhibits the hormone’s effect.
Medication Adjustment: A doctor may gradually reduce corticosteroid doses or replace them.
Surgery: Removal of tumors causing the increased secretion.

FAQ

Does high cortisol increase weight?

Yes, because it reduces the metabolic rate and increases appetite, causing fat to accumulate especially in the abdominal area, chest, and face.

Does high cortisol affect the menstrual cycle?

Yes, it may lead to irregularities in the timing of the menstrual cycle or its complete cessation due to its effect on ovarian functions.

How can I know if I have a cortisol disorder?

This is done through medical tests, where normal cortisol levels vary by time; in the morning, blood levels range between 10-20 mcg/dL, while they drop in the afternoon to 3-10 mcg/dL.

Is high cortisol dangerous?

Yes, excessive and chronic elevation can lead to Cushing’s syndrome and increase the risk of diabetes, osteoporosis, and high blood pressure.

When to Visit a Doctor?

Seek medical consultation immediately when the following signs appear:

Clear purple stretch marks on the skin.
Sudden and unexplained weight gain in the abdominal area and face.
Severe muscle weakness in the limbs.
Acute disturbances in the menstrual cycle or sexual function.

Disclaimer: This content is for informational purposes only and does not substitute for professional medical advice.