Acrochordons: Six Common Reasons for the Appearance of 'Skin Tags'

Popularly known as skin tags, acrochordons are minute, soft skin tissue protrusions that remain attached to the skin's surface.

They generally exhibit a color identical to that of the skin itself or a slightly darker shade, and can appear in multiple body areas.

Although the detection of these small protuberances often causes surprise, they are quite common and, as a rule, harmless.

Their manifestation, often perceived as sudden, especially in adulthood, raises questions about the origin of their appearance.

As dermatological experts explain, it is uncommon for acrochordons to stem from a single cause. In most situations, their formation is attributed to a conjunction of hormonal, genetic, and physical factors.

Understanding these potential origins provides clarity on why they develop and explains the higher propensity of certain individuals to manifest them.

1. Genetic Factor

Heredity plays a significant role in the emergence of acrochordons. Individuals whose parents, grandparents, or other close family members have previously exhibited these skin growths have a high probability of developing them.

Certain organisms have a congenital predisposition to generate these small, benign lesions.

In these circumstances, such protuberances can appear independently of evident external stimuli, such as constant friction or hormonal imbalances.

2. Hormonal Imbalances

Fluctuations in hormone levels are equally conducive to the appearance of acrochordons.

Many women observe the emergence of these minute formations during pregnancy, a period when the body experiences profound hormonal changes.

The action of hormones directly impacts the proliferation, renewal, and recovery of skin cells.

In the face of hormonal fluctuations, the epidermis may manifest small tissue growths, especially in regions more prone to friction.

3. Insulin Resistance

Studies indicate a possible connection between acrochordons and insulin resistance, a clinical condition in which the body exhibits a deficiency in effectively metabolizing this hormone.

Individuals who develop multiple acrochordons, particularly in areas such as the neck and armpits, are occasionally advised by healthcare professionals to monitor their blood glucose levels.

Although these growths are harmless, their incidence tends to be higher in patients with metabolic dysfunctions.

4. Skin Aging Process

The advancement of age is intrinsically linked to a higher prevalence of acrochordons.

Although they can manifest at any stage of life, many individuals notice their occurrence more distinctly from their fourth or fifth decade onwards.

This phenomenon is explained by the structural transformations inherent in the aging of the epidermis.

Collagen and elastin fibers undergo alterations, increasing the skin's predisposition to develop these small, benign formations.

5. Obesity and Overweight

Excess body mass also presents itself as a contributing factor to the emergence of these minute dermal protuberances.

Individuals with a greater accumulation of adipose tissue tend to have more skin folds, which intensifies friction between different skin surfaces.

This repetitive interaction can catalyze the formation of acrochordons, especially in areas such as the nape of the neck, armpit regions, and the inner thighs.

6. Continuous Skin Friction

Friction is widely recognized as one of the most prevalent mechanisms for the appearance of acrochordons.

The repeated rubbing of skin against another body area or against clothing can trigger localized cellular proliferation, resulting in the formation of these structures.

Consequently, their recurrence is observed at points of incessant movement or superficial contact, such as:

The nape of the neck;
The armpits;
The groin area;
The inframammary area.

Excessively tight clothing or natural skin folds can exacerbate this friction, promoting the emergence of these small lesions.

When to Consult a Specialist

Acrochordons, in their vast majority, are benign lesions that do not require therapeutic intervention. However, it is prudent to seek a dermatologist's evaluation if any of these protuberances exhibit atypical changes, including:

Change in color;
Rapid increase in size;
Perception of pain or sensitivity;
Occurrence of bleeding.

A qualified professional will be able to make an accurate diagnosis of the lesion, confirm its nature as an acrochordon, and, if indicated, prescribe safe removal procedures.

Generally, these small skin formations are part of the physiological transformations of the skin throughout life.

Although their appearance may be perceived as sudden, they commonly derive from routine influences such as heredity, hormonal profile, friction, and metabolism.

Understanding these causal elements can contribute to a more serene approach to the development of acrochordons.