Skin Tags: Causes, Changes, and When to Seek Help - Dermatology

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Skin tags, also known as acrochordons, are benign growths that typically appear as small, soft pieces of skin that hang off the body. They are often flesh-colored but can vary in color, including shades of brown or black, particularly as they age or undergo changes due to various factors. Understanding the causes, changes, and when to seek medical help is essential for managing these skin growths effectively.


Causes of Skin Tags
Skin tags are generally caused by friction or rubbing against the skin. They are more common in areas where skin folds or creases, such as the neck, armpits, groin, and under the breasts. Factors that may contribute to the development of skin tags include:
1. Genetics: A family history of skin tags can increase the likelihood of developing them.

2. Obesity: Excess weight can lead to more skin folds, increasing friction and the potential for skin tags.

3. Hormonal Changes: Hormonal fluctuations, particularly during pregnancy, can lead to the development of skin tags.

4. Age: Skin tags are more common in older adults, as skin elasticity decreases and the likelihood of friction increases.


Changes in Skin Tags
It is not uncommon for skin tags to change over time. They may grow larger, change color, or even develop hair. The darkening of a skin tag, as you have observed, can occur due to various reasons:
- Increased Blood Supply: Sometimes, a skin tag may become darker if there is an increase in blood supply to the area.

- Friction: Continuous rubbing or irritation can lead to changes in color.

- Aging: As skin tags age, they may darken or become more pronounced.

While skin tags are generally harmless, any significant changes in color, size, or texture should be monitored closely.


When to Seek Help
While skin tags are typically benign, there are certain situations where it is advisable to consult a healthcare professional:
1. Changes in Appearance: If a skin tag changes color, becomes painful, or starts to bleed, it is essential to seek medical advice. These changes could indicate a more serious condition.

2. Rapid Growth: If you notice that a skin tag is growing rapidly or multiplying, it is worth discussing with a dermatologist.

3. Cosmetic Concerns: If skin tags are causing discomfort or self-consciousness, a dermatologist can provide options for removal, which is often a simple procedure.


Conclusion
In summary, skin tags are common and usually harmless growths that can change over time. The darkening of a skin tag, as you have experienced, is not unusual and can result from various factors, including friction and hormonal changes. However, it is crucial to monitor any changes closely and consult a healthcare professional if you notice significant alterations in appearance or if the skin tag becomes bothersome. Regular skin checks and awareness of changes in your skin can help ensure that any potential issues are addressed promptly.