Why do underarms darken? Common causes and when to see a doctor
Images circulating on social media claim that darkening of the underarms is always a sign of a serious illness. However, this is incorrect. While in some cases it may be related to a medical condition, most of the time it is due to benign and treatable causes.
The color of the skin under the arms can change due to various factors, such as constant friction, frequent shaving, the use of certain products, or hormonal changes. Identifying the cause is important to choose the most appropriate treatment and avoid remedies that may worsen the irritation.
Why do armpits darken?
The skin under the arms is exposed to a combination of moisture, friction, and everyday products that can contribute to the appearance of dark spots. Among the most frequent causes are:
- Constant friction between the skin.
- Frequent shaving or hair removal.
- Use of deodorants or irritating products.
- Accumulation of dead cells.
- Overweight or obesity.
- Hormonal changes.
- Irritation caused by some hair removal methods.
When might it indicate a health problem?
In some people, darkening of the underarms may be related to a condition called acanthosis nigricans . This condition is characterized by areas of darker, thicker skin with a velvety texture.
Acanthosis nigricans may be associated with:
- Insulin resistance.
- Type 2 diabetes.
- Obesity.
- Polycystic ovary syndrome in some women.
- Less frequently, other medical disorders.
If the darkening appears suddenly, spreads rapidly, or affects other areas of the body, it is advisable to consult a healthcare professional to determine its cause.
How to prevent darkening of the underarms?
Some measures can help reduce the risk of skin darkening:
- Avoid excessive friction by wearing comfortable clothing.
- Maintain a healthy weight.
- Choosing deodorants suitable for sensitive skin.
- Moisturize your skin regularly.
- Gently exfoliate when recommended.
- Consult a dermatologist before using skin lightening products or home remedies.
Are there any treatments?
Yes. Treatment will depend on the underlying cause. When darkening is related to irritation or friction, modifying skincare habits can gradually improve its appearance.
If there is an underlying condition, such as insulin resistance or diabetes, managing that condition can also contribute to improving the appearance of the skin.
What shouldn’t you do?
- Do not apply abrasive homemade mixtures without professional guidance.
- Do not use depigmenting products without medical supervision.
- Do not scrape or rub the skin vigorously, as this may worsen the irritation.
Common myths
Myth: Having dark armpits means there is a serious illness.
Reality: In most cases it is due to benign causes such as friction, hair removal or irritation.
Myth: Only people with poor hygiene have dark armpits.
Fact: Skin color does not depend solely on hygiene and can be related to multiple factors.
Myth: All home remedies safely lighten the skin.
Fact: Some products can irritate the skin and worsen pigmentation.
When should I see a doctor?
It is advisable to see a doctor or dermatologist if:
- The darkening appears suddenly.
- The skin becomes thick or velvety.
- The spots are increasing rapidly.
- They are accompanied by itching, pain, or lesions.
- There is a history of diabetes or insulin resistance.
Conclusion
Darkening of the underarms does not automatically indicate a serious illness. In most people, it is due to common causes such as friction, shaving, or irritation. However, when it appears suddenly or is accompanied by other skin changes, it is important to consult a healthcare professional for a proper diagnosis and appropriate treatment.
