Seborrheic Keratosis

It is rarely seen in younger ages of 15-30 years old and seldom presents itself in children. However, there are cases where women have seborrheic keratosis during pregnancy, and there have been reports of individuals who have experienced lesions following estrogen replacement therapy.
Seborrheic keratosis, (skin growths), appears as harmless skin lesions, slightly protruding or elevated with a rough surface and varying in size. It is the most common skin disease, outranking the number of prevalent cases of acne, rosacea and psoriasis in total.


Seborrheic KeratosisSeborrheic keratosis is not transmitted from person to person and the growths appear as asymptomatic lesions. Occasionally, after injury, they may itch, bleed, be painful, turn red or crust.
Seborrheic keratoses are round or oval-shaped non-cancerous skin tumours and as a rule are yellow, brown or black and usually 0.5-1 cm in diameter. They surface as an individual gene fault or an increased number. The patient may experience from 1 to 100 or even more lesions which may increase in number and volume over time. A common pattern of seborrheic overcrowding is the “Christmas Tree”.

How they form

The growth of seborrheic keratosis is due to the proliferation of epidermal cells, namely the increase in the stratum corneum, which is the outermost layer of the epidermis. This is because, in this part of the skin, the cells contain a very large amount of keratin, which creates the hard and dry surface of the lesions. In some cases, excessive keratin concentration creates plaques of dry skin covered with scabs.


The exact cause of seborrheic keratosis is unclear. The ageing process clearly plays an important role; however, it is not excluded that seborrheic keratosis is the product of chronic exposure to sunlight, or due to genetic predisposition.

Where do they appear:

Seborrheic keratosis can appear anywhere in the body, such as the back, chest, scalp, throat and face except palms and soles.
Seborrheic Keratosis


The clinical diagnosis of seborrheic keratosis is often easy as it is mainly based on the occurrence of lesions. However, there are some cases where the image of the lesions is unclear and casts doubt on the final diagnosis. In this case, a histological examination should also be undergone if the possibility of malignancy cannot be ruled out.
For example, surgical melanomas can easily mimic the appearance of seborrheic keratosis, so should be examined more closely.

Leser-Trelat Syndrome

In very rare cases, a sudden increase and development of seborrheic keratosis may occur in association with malignant internal organ volume – Leser-Trelat syndrome. For this reason, Leser-Trelat syndrome, although very rare, should be taken into account in all cases of a sudden growth of numerous seborrheic keratosis to exclude internal organ cancer. In addition, it should be stressed that those suffering from Leser-Trelat syndrome need to monitor the progression of the lesions since with multiple appearances there is a risk of recurrence.

What to look for if you have seborrheic keratosis:Seborrheic Keratosis

  • Inflammation, injury and histological examination
  • Do not aggravate the growth (rub, scratch)
  • Do not try to remove the growth yourself
  • Even if a growth “falls off” on its own, it may eventually reappear
  • If lesions change color, or suddenly increase in number with itching, contact our dermatologist

Only 10% of patients with seborrheic keratosis are treated

Recent research has shown that only 10% of people with seborrheic keratosis are treated as they do not know that there is an effective way to treat it.
In the search for appropriate treatment, patients with seborrheic keratosis have been found to feel uncomfortable and annoyed with the lesions, try to hide them (e.g. with clothes), cover them with makeup or remove them by themselves. The latter, besides being dangerous because it can lead to inflammation, is also ineffective, and even if the growth “falls off” on its own, the chances of it occurring again are increased.

Why do patients want to get rid of seborrheic keratosis?

– Self-consciousness because the lesions are unsightly and tactile
– The lesions appear at annoying points such as the throat
– Sign of aging
– Restriction on clothing

LASER CO2: Careful treatment and removal of seborrheic keratosis without scars and marks

Seborrheic KeratosisIn the IQ Intensive Quality Dermatology clinics, we use the most effective treatment for the removal and successful elimination of seborrheic keratosis with LASER CO2.
LASER CO2 is the most popular medical approach for the careful treatment and removal of seborrheic overcrowding. This is because LASER acts selectively on the target, leaving the healthy perimeter area intact and aiming for the complete destruction of the lesions.
The treatment of seborrheic keratosis with LASER CO2 is non-invasive, safe, painless and effective, with no injuries, scars and marks
The removal of seborrheic keratosis with LASER CO2 can be done successfully in a single session in the safety of the dermatological clinic.