A callus can form on any part of your body as long as it is exposed to constant pressure or friction. You can acquire it from conducting different types of activities. It can develop not only on your feet but on your finger and hands as well. 

If you’re not wearing the right kind of shoes, a callus will usually form on your feet. Make sure the size of your footwear properly fits feet. Avoid pointed shoes because the irregular shape squeezes your toes and therefore allowing calluses to develop.  

Wearing high heels is on top of the list especially since it provides more pressure on the toes. This is why women who constantly wear high heels are more likely to experience foot problems compared to men.

Another reason is when you wear certain footwear without using socks. The friction of the shoes or sandals against your skin can produce a callus. A callus typically forms on the side, heel or ball of your feet where it holds pressure and weight. 

When you are constantly writing, a callus forms on your middle finger because where it supports and holds the pen. In some cases a callus can develop from playing various musical instruments such as a guitar or other string devices since the tip of your finger is pushed against the string. 

An overworked hand is usually spotted with several calluses. It can also form on your palms and your knuckles. 

Many physical activities are culprits to acquiring calluses. It can be developed from construction work, lifting heavy materials, sports, hiking, biking, dancing, playing, and a lot of other events. Having a callus is normal for most people who have an active lifestyle. 

The outermost layers of our skin produce dead cells. Exposure to toxic materials and viruses can cause a thickening of the skin. Some develop with age, hormonal changes or even sun exposure. 

You can see more An Ultimate Guide to the Best Electric Callus Remover.