Seborrhoeic keratosis

Created: 09.01.2025

Updated 09.01.2025

Approved by: Consultant Dermatologist, Dr James Denny

What is a Seborrhoeic keratosis?

A Seborrhoeic keratosis, also known as Seborrhoeic wart, is a common skin growth. They can often be mistaken for moles, leading to concerns about their potential malignancy. However, they are not cancerous. Seborrhoeic keratoses most commonly appear on the trunk but can also occur in other areas such as the scalp or face. They do not develop into malignancies.

Why do you get Seborrhoeic keratoses?

As we age, Seborrhoeic keratoses, also known as seborrhoeic warts and basal cell papillomas, tend to become more common. While they can appear as early as in our 20s, they are more frequently observed in older age. Unlike many other types of warts, these growths are not caused by a virus, and their precise cause remains unknown. It's important to note that seborrhoeic keratoses are not contagious, and there are no specific preventive measures to avoid their development.

What are the treatments?

Seborrhoeic keratoses generally have a distinct appearance that allows for accurate diagnosis by a Dermatologist. In rare instances of diagnostic uncertainty, a biopsy may be recommended for further examination. While seborrhoeic keratoses themselves are not associated with an increased risk of malignant melanoma (skin cancer), there have been cases where a cancerous mole was mistaken for a seborrhoeic keratosis, potentially delaying diagnosis. Therefore, if there is any doubt or concern regarding changes in your skin, it is always advisable to consult with a Dermatologist.

Seborrhoeic keratoses typically do not require treatment, but they can be removed if desired. Cryotherapy (freezing treatment) is an excellent option. However, while treatment can be effective, there is a possibility they may reoccur or not fully resolve. In such cases, treatment can be repeated as necessary.

On occasion surgery may be suggested for larger lesions or if recurrence is a concern.