Fungal nail infections can cause the nails to become thickened, discolored, and brittle. They are often caused by exposure to moist environments such as public swimming pools, locker rooms, and showers.

These are thickened areas of skin that develop on the feet in response to pressure or friction. They can be caused by tight-fitting shoes, high heels, or walking barefoot.

Plantar warts are caused by a viral infection of the skin on the soles of the feet. They appear as small, hard, rough bumps and can be painful to walk on.

Blisters are fluid-filled pockets that form on the skin in response to friction or injury. They can be caused by ill-fitting shoes or excessive rubbing during physical activity.

Tendinitis is an inflammation of the tendons, which are the tissues that connect muscles to bones. It can be caused by overuse or injury and can cause pain, swelling, and difficulty moving the affected area.

Ganglion cysts are fluid-filled sacs that develop on the joints or tendons of the hands or feet. They can be painful and may interfere with movement.

A plantar fibroma is a rare benign growth on your plantar fascia, the rubber band-like ligament that stretches from your heel to your toes. Plantar fibromas are small — usually less than an inch — and grow on the arch of your foot.

 A fungal infection that usually begins between the toes. It commonly occurs in people whose feet have become very sweaty while confined within tight-fitting shoes. Symptoms include a scaly rash that usually causes itching, stinging, and burning. People with athlete’s foot can have moist, raw skin between their toes.