Cushing Syndrome Symptoms in Women: Causes, Signs, and Treatment

Overview

• Cushing syndrome occurs due to prolonged exposure to excess cortisol or synthetic glucocorticoids, affecting metabolism and hormonal health.
• Common symptoms include abdominal weight gain, a rounded face, a fatty pad near the neck, muscle weakness and skin changes.
• Women may also experience acne, excessive facial or body hair, irregular periods and fertility-related changes.
• Long-term corticosteroid use and hormone-producing tumours are major causes of the condition.
• A Hirsutism Panel – Essential from Redcliffe Labs, which measures DHEA-S, free testosterone and total testosterone, may help assess androgen levels in women experiencing excessive facial or body hair growth. It does not measure cortisol or diagnose Cushing syndrome. 

What Is Cushing Syndrome?

Cushing syndrome is a hormonal disorder that occurs when the body is exposed to high levels of cortisol over an extended period. Cortisol is a steroid hormone produced by the adrenal glands, which sit above the kidneys. It helps regulate blood pressure, blood glucose, metabolism, inflammation and the body's response to stress.

Normally, cortisol production follows a daily rhythm and is regulated by signals between the hypothalamus, pituitary gland and adrenal glands. When this system is disrupted or the body receives excess corticosteroid medicines, cortisol levels or their effects can remain unusually high.

Although this hormonal disorder can affect anyone, women may experience additional reproductive and androgen-related changes, such as irregular periods and increased facial or body hair growth.

It is also important to understand the difference between Cushing syndrome and Cushing disease. Cushing syndrome describes the overall condition caused by prolonged cortisol excess. Cushing disease is a specific type of condition caused by an ACTH-producing tumour in the pituitary gland.

What Are the Common Cushing Syndrome Symptoms in Women?

The symptoms may develop gradually and become more noticeable as excess cortisol affects different body systems. Not every woman experiences the same changes, and the severity depends on the extent and duration of cortisol exposure.

Some characteristic symptoms include:

1. Weight Gain Around the Abdomen and Upper Body

One of the noticeable physical changes is increased fat accumulation around the abdomen, upper back and face, sometimes involving the chest and neck. The arms and legs may appear thinner because prolonged cortisol exposure can also cause muscle loss.

This pattern of weight gain associated with excess cortisol is different from simple weight gain because fat distribution changes while muscle strength may decrease.

2. Rounded or Fuller Face

Excess cortisol can cause fat accumulation around the face, making it appear rounder and fuller. This is commonly known as the moon face.

Some women may also notice facial redness or puffiness.

3. Fat Accumulation Around the Neck and Shoulders

A fatty deposit may develop at the base of the neck or between the shoulders. This is commonly called a buffalo hump.

This change can occur alongside increased fat accumulation around the abdomen and upper body.

4. Purple Stretch Marks and Other Skin Changes

Cortisol can reduce collagen production and affect the skin's ability to repair itself. As a result, women may experience:

• Wide, reddish-purple stretch marks, particularly on the abdomen, breasts, hips and thighs.
• Thin, fragile skin.
• Easy bruising, sometimes without a clear injury.
• Slow wound healing.
• Acne and an increased susceptibility to skin infections.

Wide purple stretch marks and easy bruising are particularly important clinical signs when assessing suspected cortisol excess.

5. Muscle Weakness and Fatigue

Excess cortisol can increase the breakdown of muscle proteins, particularly in the muscles around the shoulders and hips.

Women may find it difficult to climb stairs, stand up from a low chair or lift everyday objects. Persistent tiredness and reduced physical strength may also affect daily activities.

6. Mood Changes and Sleep Disturbances

Prolonged cortisol excess can affect mood, memory and sleep. Some women may experience irritability, anxiety, depression, difficulty concentrating or disturbed sleep.

These changes may occur alongside physical symptoms and affect overall quality of life.

What Are the Early Signs of Cushing Syndrome in Women?

The early signs of excess cortisol can be subtle because they may resemble common metabolic, skin-related or hormonal concerns.

Some changes that may appear over time include:

• Gradual, unexplained weight gain.
• New or worsening skin changes.
• Increasing muscle weakness.
• Changes in menstrual cycles.
• Increased facial or body hair.

Cushing syndrome symptoms become more concerning when several changes develop together and progressively worsen. For example, unexplained weight gain accompanied by muscle weakness, wide purple stretch marks and easy bruising may warrant further medical evaluation.

A single symptom, such as weight gain or acne, does not establish the condition. Doctors consider the overall pattern of symptoms, their progression and the patient's medical history before recommending tests.

What Are the Main Causes of Cushing Syndrome?

Understanding what leads to excess cortisol is important because treatment depends on whether it comes from medicines or increased hormone production within the body.

The condition is broadly classified into two types:

• Exogenous Cushing syndrome: Caused by exposure to corticosteroid medicines.
• Endogenous Cushing syndrome: Caused by excessive cortisol production within the body.

The main causes of Cushing’s syndrome include the following:

1. Long-Term Use of Corticosteroid Medicines

Prolonged use of corticosteroid medicines is the most common overall cause of the disorder. 

These medicines are prescribed for conditions such as asthma, autoimmune disorders, severe allergies and inflammatory diseases. Examples include prednisolone, prednisone and dexamethasone.

They may be given as tablets, injections or other formulations. The risk depends on factors such as the medicine, dose, duration and route of administration.

Corticosteroids should never be stopped suddenly without medical advice. Long-term use can suppress the body's natural cortisol production, making gradual dose reduction necessary in some patients.

2. Pituitary Gland Tumours

The pituitary gland produces adrenocorticotropic hormone (ACTH), which signals the adrenal glands to release cortisol.

A usually non-cancerous pituitary tumour may produce excessive ACTH, causing the adrenal glands to release too much cortisol. This condition is called Cushing disease.

It is important to distinguish Cushing's disease symptoms in women from symptoms caused by other forms of Cushing syndrome. The physical features may overlap, but the underlying cause is different.

3. Adrenal Gland Tumours

Tumours in the adrenal glands may produce cortisol independently of normal hormonal signals. These can be benign or malignant.

Excessive cortisol production from an adrenal tumour can lead to the physical and metabolic changes associated with the condition.

4. Ectopic ACTH Production

Sometimes, tumours outside the pituitary gland produce ACTH. This hormone stimulates the adrenal glands to release excessive cortisol.

This is known as ectopic ACTH syndrome and may be associated with certain lung or other neuroendocrine tumours.

These different underlying causes require specific investigations because the treatment approach depends on the source of excess cortisol.

How Does High Cortisol in Women Affect Hormonal Health? 

Cortisol interacts with several hormonal systems, including those involved in reproductive function. Prolonged cortisol excess can affect menstrual cycles, androgen activity and fertility.

1. Cushing Syndrome and Irregular Periods

Excess cortisol can interfere with the hormonal signals that regulate ovulation and menstruation. This may cause menstrual changes, particularly when cortisol excess is prolonged.

These menstrual changes may include:

• Irregular menstrual cycles.
• Missed periods.
• Lighter or absent menstrual bleeding.
• Disrupted ovulation.
• Difficulty conceiving.

The relationship between cortisol and reproductive hormones is complex. Not every woman with Cushing syndrome experiences menstrual changes.

Menstrual abnormalities in women with Cushing's disease should also be considered in the context of other possible causes, including PCOS, thyroid disorders and changes in reproductive hormone levels.

2. Hirsutism in Women

Hirsutism in women refers to the growth of coarse, dark hair in areas where hair growth is more commonly associated with male-pattern distribution. These areas may include the chin, upper lip, chest, abdomen and back.

Cushing syndrome can sometimes contribute to hirsutism through increased adrenal androgen production. However, excessive hair growth is not present in every woman with the condition.

PCOS is another common cause of androgen-related hair growth.

Excessive Facial Hair in Women: Is It Related to Cushing Syndrome?

Excessive facial hair in women may occur when androgen levels or activity increase. In some cases, the adrenal glands may produce excess androgens along with cortisol.

However, facial hair growth alone does not indicate this disorder. Other causes, including PCOS and certain adrenal or ovarian disorders, may also contribute.

When evaluating excessive facial hair in women, doctors may consider androgen-related investigations depending on the symptoms and clinical history.

A Hirsutism Panel – Essential, which includes DHEA-S, free testosterone and total testosterone, may help assess androgen levels when recommended by a healthcare professional. It does not measure cortisol and cannot confirm or rule out Cushing’s disease. 

How Is Cushing Syndrome Diagnosed?

Cushing syndrome diagnosis involves assessing symptoms, reviewing medication history and performing specific hormonal investigations. Since several conditions can produce similar changes, doctors use biochemical tests to determine whether cortisol levels are abnormally high.

The process of diagnosing Cushing’s disease generally involves the following steps.

1. Medical History and Physical Examination

The doctor may ask about:

• Changes in body weight and fat distribution.
• Skin changes, stretch marks and easy bruising.
• Muscle weakness.
• Menstrual irregularities and excessive hair growth.
• Current or previous corticosteroid use.
• Other medical conditions and medications.

A physical examination may help identify characteristic signs, such as facial rounding, purple stretch marks and fat accumulation around the neck.

2. 24-Hour Urinary Free Cortisol Test

This test measures the amount of unbound cortisol released in urine over 24 Hours.

The patient collects urine throughout the specified period, and the sample is analysed to assess cortisol production. Doctors generally recommend at least two measurements for an appropriate initial evaluation.

3. Late-Night Salivary Cortisol Test

Cortisol levels normally decrease at night and reach their lowest levels around midnight.

This test measures cortisol in saliva collected late at night. Higher-than-expected levels may indicate that the body's normal daily cortisol rhythm is disrupted.

Two separate measurements are generally recommended.

4. Dexamethasone Suppression Test

Dexamethasone is a synthetic corticosteroid that normally suppresses the body's natural cortisol production.

For an overnight suppression test, the patient takes a prescribed dose of dexamethasone at night. A blood sample is collected the following morning to measure cortisol.

If cortisol does not decrease as expected, further evaluation may be necessary.

5. ACTH Testing and Imaging

Once excess cortisol production has been confirmed, doctors may measure ACTH levels to help identify the source.

Depending on the results, additional investigations may include an MRI of the pituitary gland or CT imaging of the adrenal glands.

These investigations help locate the underlying cause. Imaging alone cannot establish the diagnosis.

Important: A random blood cortisol test alone is not recommended to diagnose Cushing syndrome. The choice of investigation depends on the patient's medical history and clinical assessment.

Diseases That Mimic Cushing Syndrome

Several medical conditions can produce physical or hormonal changes similar to those seen in this disorder. Some can also cause temporary increases in cortisol without the person having true Cushing syndrome.

Conditions that may resemble the disorder include:

Condition	Similarities with Cushing’s syndrome
Polycystic ovary syndrome (PCOS)	Weight gain, acne, irregular periods and excessive facial hair.
Obesity	Increased abdominal fat and metabolic changes.
Depression and anxiety	Mood changes and, in some cases, altered cortisol regulation.
Hypothyroidism	Weight gain, fatigue and menstrual irregularities.
Alcohol use disorder	May cause increased cortisol activity and Cushing-like features.
Poorly controlled diabetes	Can overlap with some metabolic features of cortisol excess.

In some individuals, conditions such as depression, alcohol dependence and poorly controlled diabetes can produce a state called pseudo-Cushing syndrome. In this situation, cortisol levels or regulation may be abnormal without the underlying disorder responsible for true Cushing syndrome.

Doctors differentiate these conditions through medical history, examination and appropriate hormonal testing. This is important because the treatment for each condition is different.

What Are the Treatment Options for Cushing Syndrome?

Cushing syndrome treatment aims to reduce excessive cortisol exposure, address its underlying cause and manage associated health complications.

The appropriate approach depends on whether the condition is caused by corticosteroid medicines, a pituitary tumour, an adrenal tumour or another source of excess hormone production.

1. Adjusting Corticosteroid Medicines

If cortisol excess develops due to long-term corticosteroid use, the doctor may gradually reduce the dose or consider an alternative medicine.

The treatment plan depends on the original medical condition and the risk of adrenal insufficiency. Corticosteroids should not be discontinued independently.

2. Surgery for Pituitary Tumours

When Cushing disease develops due to a pituitary tumour, surgery to remove the tumour is generally the preferred first-line treatment.

The procedure is commonly performed through the nose using a minimally invasive technique called transsphenoidal surgery.

3. Surgery for Adrenal Tumours

If an adrenal tumour is responsible for excess cortisol production, surgical removal of the affected gland may be recommended.

The approach depends on the tumour's size, characteristics and whether it is benign or malignant.

4. Medicines to Control Cortisol Production

Certain prescription medicines can reduce cortisol production or block its effects.

They may be recommended when surgery is not possible, when surgery has not completely controlled cortisol production or as an additional treatment.

The choice of medicine depends on the underlying cause and the patient's clinical condition.

5. Radiation Therapy

Radiation therapy may be considered in selected cases, particularly when a pituitary tumour cannot be completely removed or continues to produce excess ACTH.

Its effects may take time to develop, so additional medical treatment and monitoring may be needed.

6. Managing Associated Health Complications

Along with addressing the underlying cause, doctors may manage complications such as:

• High blood pressure.
• Elevated blood glucose levels.
• Osteoporosis and bone weakness.
• Increased cardiovascular risk.
• Mood and mental health concerns.
• Menstrual and reproductive health changes.

Successful treatment for Cushing's syndrome also requires regular follow-up to monitor cortisol levels, recovery of normal hormone function and the possibility of recurrence.

When Should Women Consult a Doctor?

Women should seek medical evaluation if they notice several progressive physical or hormonal changes, particularly when they occur together.

Consult a healthcare professional if you experience:

• Unexplained weight gain around the abdomen, face or upper back.
• Wide purple stretch marks or frequent bruising.
• Persistent muscle weakness.
• New or worsening facial hair growth.
• Irregular or absent menstrual periods.
• High blood pressure or elevated blood glucose along with other characteristic changes.

These symptoms do not automatically indicate Cushing syndrome. However, timely evaluation can help identify the underlying cause and determine whether hormonal testing is necessary.

Conclusion

Cushing syndrome can affect women's physical, hormonal and reproductive health. Recognising progressive symptoms and seeking timely medical evaluation can help identify the condition. Appropriate cortisol testing and further investigations help confirm the diagnosis and guide treatment based on the underlying cause.

FAQs

What are the early warning signs of excess cortisol in women?

The early signs may include gradual weight gain around the abdomen and face, facial rounding, acne, easy bruising and muscle weakness. Some women may also experience irregular menstrual cycles or increased facial hair growth. A combination of progressive symptoms warrants medical evaluation.

Can high cortisol levels cause excessive facial hair in women?

Yes. Excess cortisol can sometimes increase adrenal androgen production, contributing to coarse hair growth on the chin, upper lip, chest and abdomen. However, excessive facial hair can also occur due to PCOS and other hormonal conditions. Further evaluation helps identify the underlying cause.

How is Cushing disease different from Cushing syndrome? 

Cushing syndrome refers to prolonged exposure to excessive cortisol, which may result from corticosteroid medicines or increased cortisol production within the body. Cushing disease is a specific type caused by a pituitary tumour that produces excessive ACTH, stimulating the adrenal glands to release more cortisol.

Which tests help detect abnormally high cortisol levels?

Doctors may recommend a 24-hour urinary free cortisol test, late-night salivary cortisol test or dexamethasone suppression test. These investigations assess cortisol production and regulation. Additional ACTH testing and imaging may help identify the underlying cause.

Can hormonal changes affect fertility and menstrual cycles?

Yes. Prolonged exposure to excess cortisol can interfere with reproductive hormone regulation and ovulation. This may cause irregular periods, absent menstruation and difficulty conceiving. Treating the underlying condition may help improve hormonal function, although recovery varies between individuals.