Thickening on the foot skin or calluses (callus) is common and a lot happened, maybe even every person had ever experienced it. Thickening on the foot skin is not only callous, but it could be as Clavus (corn), plantar hyperkeratosis and Veruca.
Here are the differences:
a. Calluses (Callus)
Callus is skin irritation on leg that is characterized by thickened horny layer or stratum corneum in the epidermis. The thickening is local, i.e in certain parts of the skin of the feet that are under pressure, friction or trauma repeatedly and for a long time.
Pressure, friction and trauma can due to improper use of shoes and for a long time, like a small shoe size, shape shoes that do not fit the shape of the foot, harsh footwear and hard shoe materials. In addition, the natural anatomy which the toes are too close together can also cause calluses. Excess weight also contributes as a factor causing calluses because it provides tremendous pressure on the soles of the feet.
b. Clavus (Corn)
Clavus (corn) is a more severe callus. Clavus is also called corn because its shape is like a dry corn with a point in the middle. Similarly, Clavus, in areas of thickening, there is a point in the middle. Because there is a point, some people call Clavus as eyelets. Clavus is dry and hard. If it is pressed, Clavus will cause pain, injuries and bleeding.
c. Plantar hyperkeratosis
Plantar hyperkeratosis is often equated with calluses. Indeed, both are characterized by thickening of the foot skin. Thickening of plantar hyperkeratosis occurs in all parts of the foot soles. In addition, plantar hyperkeratosis is more caused by disorders such as eczema, dermatitis, or psoriasis.
d. Veruca
Veruca is also characterized by thickening of the foot soles. Unlike callus that is caused by trauma, stress and friction in a long time, Veruca is caused by virus.