Choosing to wear and walk with ill-fitting shoes – Generally, shoes like high heels and sandals and shoes that are tight can lead to compression and added pressure on specific areas on your feet. The same can be said for shoes that are too loose, as your feet are prone to repeated sliding and rubbing against the shoe, which ultimately is another source of friction.
Playing instruments like guitars or using hand tools – Repeated use of instruments such as guitars and tools have a marked effect on the chances of calluses appearing on your fingers. This is caused by the repeated pressure on your hands.
Writing – Excessive writing can lead to the development of calluses in the gaps of your fingers due to the friction caused between the ballpen or pencil and your fingers.
Lack of hand protection – Performing heavy-duty tasks involving tools create friction and pressure. When doing these types of activities, wear protective gloves or gear.