Skin thickness can vary significantly depending on several factors. Sometimes, excessively thick skin is a symptom of an underlying condition. Let's explore the possibilities.
Causes of Thick Skin
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Hyperkeratosis: This condition leads to thickened skin due to the overproduction of keratin, a protein in the skin's outer layer. Hyperkeratosis can affect any body part including hands, feet, mouth, nose, and nails. It can be present from birth or develop later in life. Excessive pressure, as seen in the feet due to ill-fitting shoes, can trigger it https://www.footfocuspodiatry.co.uk/how-hyperkeratosis-can-affect-your-feet/. The thickening is a result of the body's attempt to protect the underlying tissue.
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Scleroderma: This autoimmune disease causes inflammation and fibrosis (thickening) in the skin and other parts of the body. Scleroderma leads to skin thickening and can also affect internal organs.
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Natural Variations: Skin thickness varies naturally across the body. The palms of your hands and the soles of your feet naturally have thicker skin than other areas due to the presence of an additional layer in the epidermis called the stratum lucidum. Thick skin is thicker due to having a stratum lucidum. This type of thickness is normal and protective.
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Aging: As we age, the subcutaneous fat layer (the fat beneath the skin) thins. While this doesn't directly make the skin thicker, it can lead to a decrease in the skin's padding and insulation, potentially making it feel thinner and more susceptible to injury. Subcutaneous fat thins with age.
Determining the Cause
If you're concerned about unusually thick skin, it's crucial to consult a dermatologist. They can properly diagnose the underlying cause and recommend appropriate treatment.
