First, increase the risk of trauma and infection.

Wearing shoes causes a lot of skin damage to the feet, and is often bruised or bitten by mosquitoes. If you walk too much, your feet will wear blood bubbles. The bacteria in the air are attached to the skin, and if the skin has a wound, it will cause infection.

Two, the skin is directly burned by the sun.

The ultraviolet rays in the sunlight stimulate the skin to produce large amounts of free radicals, which damage the skin cell tissue, accelerate melanin formation, make skin pigmentation, rough, lose elasticity, and reduce skin resistance.

Data show that bare feet are worn.

The large area of the feet 'skin directly exposed to sunlight increases the risk of skin cancer.

The three is skin keratosis and dermatitis.

Regular direct contact between feet and shoes can make the cuticle of the heel, toe and other parts often contacting with shoes longer and thicker, which increases the probability of callus that is "Cocoons" and "corns".

In addition, some people spend a long time in bare feet and shoes, walking on their feet, toes and other parts of the shoes. They are prone to skin redness, papules and blisters. This is because the skin is made of leather, rubber and other shoes.

It is a contact dermatitis.

The four is prone to fungal infection.

People's feet are hot and sweat easily, and they do not wear socks to wear shoes directly. Especially wearing plastic sandals, sneakers and other poorly ventilated shoes will make feet skin soaked in sweat directly, and fungi are prone to grow in damp and hot environment, which will cause foot fungus infection.