Seborrheic keratosis is a common benign skin growth that typically appears as brown, black, or light tan raised lesions with a waxy or scaly texture. These growths are often found on areas of the body that are exposed to the sun, but they can also develop in areas that are not sun-exposed. Seborrheic keratosis is more common in middle-aged and older adults and can vary in size from a fraction of an inch to several centimeters.
The exact cause of seborrheic keratosis is not fully understood, but several factors may contribute to their development:
- Genetic predisposition: Some people may have a genetic tendency to develop seborrheic keratoses.
- Age: They are more common in older individuals.
- Sun exposure: While seborrheic keratoses can appear in sun-protected areas, they are more prevalent in areas exposed to sunlight.
Seborrheic keratoses are typically painless and do not cause any discomfort unless they become irritated or injured. They can vary in color and appearance, but they often have the following characteristics:
- Waxy, scaly, or rough texture.
- Round or oval shape.
- Slightly elevated or flat.
- Varied in color, ranging from light tan to dark brown or black.
- May be single or occur in clusters.
Although seborrheic keratoses are benign and do not usually require treatment, some people may choose to have them removed for cosmetic reasons or if they become irritated, itchy, or bleed. Treatment options include:
- Cryotherapy: Liquid nitrogen is used to freeze the seborrheic keratosis, causing it to fall off after a few days.
- Curettage: The growth is scraped off with a special tool.
- Electrosurgery: High-frequency electrical currents are used to remove the lesion.
- Laser therapy: A laser can be used to vaporize the growth.
- Shave excision: The seborrheic keratosis is shaved off with a scalpel.
It’s important to note that these treatments may leave behind scars or pigment changes in the skin. If you have seborrheic keratoses that you are concerned about, it’s best to consult with a dermatologist who can provide a proper diagnosis and discuss the most appropriate treatment options based on your individual case. Additionally, it’s essential to rule out other skin conditions that may mimic the appearance of seborrheic keratosis, such as melanoma, as early detection of skin cancer is critical for successful treatment.
