Dark Skin Folds & You Don't Know What It Is?

Have you noticed that the skin has become darker in the armpits, groin, between the thighs or on the neck? Dark skin folds are a common problem that can have several different causes – from friction and irritation to hormonal changes or skin conditions like acanthosis nigricans.

Many experience that the skin in certain areas gradually becomes darker, thicker or gets a somewhat velvety texture. This can occur in areas where the skin is often exposed to friction or where skin lies against skin, for example:

• Armpits
• Groin
• Between the thighs
• The neck
• Under the breasts
• Elbows and knees

In most cases, dark skin folds are harmless, but sometimes they can be a sign of underlying factors such as insulin resistance, hormonal changes or other health conditions. Therefore, it is important to understand what causes the change and when it might be time to seek medical care.

In this article, we go through what dark skin folds are, common causes behind the condition, how acanthosis nigricans differs from regular pigmentation and what care options are available.

Acanthosis nigricans is a skin condition characterized by thick, dark and contracted skin. Usually, it occurs in areas such as the neck, armpits, groin and under the breasts. Although it is uncommon, it is important to understand what causes this condition and how it can be cared for.

Acanthosis nigricans

Causes for Acanthosis nigricans to occur are when the epidermis, the outermost layer of the skin, becomes thicker and darker. This is due to an increase in cell growth and melanin production in the skin. The causes of this increase in cell growth and melanin production can vary.

One of the most common causes of Acanthosis nigricans is insulin resistance, which is a precursor to diabetes. When the body cannot use insulin effectively, the production of insulin and growth hormones in the body increases. This leads to an increase in cell growth and melanin production in the skin, which causes Acanthosis nigricans.

Other causes can be more extensive overweight, hormonal imbalances, certain medications, autoimmune diseases, genetic factors and cancer.

Symptoms of acanthosis nigricans

The condition causes dark, thick and contracted skin areas that usually occur on the neck, armpits, groin and under the breasts. These areas can feel uneven and sometimes there can be a slight itch or irritation. Sometimes small bumps or wart-like growths can also occur in these areas.

Care for acanthosis nigricans

The care for Acanthosis nigricans depends on the cause of the condition. If it is caused by insulin resistance or diabetes, the first step may be to control blood sugar levels by changing the diet and increasing physical activity. Certain medications can also be used to care for insulin resistance.

If Acanthosis nigricans is caused by more extensive overweight, weight loss can be part of the care. It may also be necessary to remove any medication that may contribute to the condition. In some cases, chemical peels, laser procedures or prescription creams can be used to care for Acanthosis nigricans.

In addition to that, we recommend having skincare products at home that help care for the condition. This can be products such as serums, creams, peels and masks containing acids. For example, body wash and body cream containing AHA acid. These acids promote cell renewal and help the skin. It is also important to alternate with deeply moisturizing creams to lock in moisture. Also be careful to drink plenty of water.

FAQ

What causes acanthosis nigricans?

An increased cell growth and melanin production in the skin causes the epidermis, the outermost layer of the skin, to become thicker and darker. In some cases, this is a sign of insulin resistance, which can be a precursor to diabetes.

Can acanthosis nigricans go away on its own?

There is no specific routine for Acanthosis nigricans, but in many cases, addressing the underlying cause can help with the symptoms. If it is a sign of insulin resistance or diabetes, it is important to control blood sugar levels. In some cases, care such as chemical peels, laser or prescription creams may be relevant.

What is the difference between acanthosis nigricans and hyperpigmentation?

Hyperpigmentation is an umbrella term in dermatology that means a skin area becomes darker than the surrounding skin due to a higher accumulation of the color pigment melanin. Acanthosis nigricans is a specific type of skin change that is often linked to systemic diseases.

Can I use a dermaroller on sensitive groin skin?

Yes – roll gently with 0.25 mm once every 10 days and apply niacinamide serum immediately after. The micro-channels increase absorption up to 3× without a longer healing time.

When should I see a doctor for dark skin in folds?

If the pigment quickly becomes darker, itches or spreads to the neck and hands, it could be acanthosis nigricans linked to blood sugar – book an appointment at a health center for a check-up.

If you suspect that you have Acanthosis nigricans, it is very important that you see a doctor.

Hugs,
Matilda
Skin Therapist Skinroller