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What Causes Too Much Keratin in Skin?

Published in Skin Conditions 3 mins read

Too much keratin in the skin, also known as hyperkeratosis, is primarily caused by either pressure-related irritation or non-pressure related factors.

Understanding Hyperkeratosis

Hyperkeratosis is a condition where the skin produces an excessive amount of keratin, a protein that makes up the outer layer of the skin. This excess keratin can lead to thickened, rough, or scaly skin. The reasons behind this vary, and they can be broadly categorized into two types, pressure-related and non-pressure related.

Pressure-Related Hyperkeratosis

Pressure-related hyperkeratosis occurs when the skin is subjected to:

  • Excessive Pressure: Constant pressure on the skin can trigger the production of more keratin.
  • Inflammation: Skin inflammation causes the skin to produce more keratin as a defense mechanism.
  • Irritation: When the skin is irritated, it responds by creating extra layers of keratin for protection.

These types of hyperkeratosis commonly develop in areas that experience repetitive friction or pressure, like:

  • Feet: Corns and calluses are classic examples due to poorly fitted shoes.
  • Hands: Especially common in individuals who work with their hands.
  • Other pressure points: Any area that experiences consistent friction or pressure can be affected.

The skin produces the extra layers of keratin to protect the underlying tissues from further damage.

Non-Pressure Related Hyperkeratosis

Non-pressure related hyperkeratosis occurs on skin that has not experienced irritation. The specific causes of this are not detailed in the reference provided. However, common examples include:

  • Genetic factors: Some individuals are simply more prone to developing hyperkeratosis due to inherited conditions.
  • Underlying Medical Conditions: Some health conditions can trigger the overproduction of keratin.
  • Environmental factors: Harsh weather conditions and chemical exposures can contribute.

Causes Summarized

Cause Category Description Examples
Pressure-Related Skin reacts to excessive pressure, inflammation or irritation by creating more keratin. Corns, Calluses on Feet and Hands
Non-Pressure Related Skin produces excess keratin without external pressure, may be genetic or medical. Some inherited skin conditions

Conclusion

In summary, the primary causes of too much keratin in the skin are pressure related irritation and, less understood, non-pressure related factors. Pressure-related hyperkeratosis is a direct response to protect the skin, while non-pressure related hyperkeratosis can result from genetic predispositions and other unknown factors.

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