Keratosis pilaris is caused by the buildup of keratin, blocking hair follicles and resulting in rough, bumpy skin.
Here's a more detailed explanation:
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Keratin Buildup: The primary cause is an accumulation of keratin, a tough, insoluble protein that protects the skin from infection and harmful substances. In keratosis pilaris, excess keratin clogs the openings of hair follicles.
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Blocked Hair Follicles: This blockage leads to the formation of small, hard bumps, often described as resembling goosebumps or chicken skin. These bumps are essentially plugs of keratin within the hair follicles.
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Unknown Trigger: While the process of keratin buildup is understood, the underlying reason why some individuals experience this excessive keratin production is not fully known. Genetics are believed to play a significant role, and it's often associated with other skin conditions.
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Associated Conditions: Keratosis pilaris is frequently seen in people with:
- Dry skin
- Eczema (atopic dermatitis)
- Ichthyosis vulgaris
- Hay fever
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Not Contagious: It's important to note that keratosis pilaris is a common and harmless condition. It is not contagious.
In summary, keratosis pilaris occurs due to the accumulation of keratin that blocks hair follicles. The precise cause of this excess keratin production remains unclear but is likely linked to genetic predisposition and associated skin conditions.
