With your arm twisted downward, slowly raise your arm. If this causes pain, you may have tendinitis! Grab the elbow on the side where you have shoulder pain (if your right shoulder hurts, then grab your right elbow) and pull it across your body. If this causes pain, you may have an impingement.
There are certain conditions that are more likely to cause athlete's foot, including: 1  Closed, tight shoes in which the toes are squeezed together. 2  Plastic shoes. 3  Damp socks and/or shoes.  Warm and humid weather 1  conditions. Very sweaty feet.  Minor cuts or scrapes on the feet or toenails.
Athlete's foot is caused by a microscopic fungus that lives on dead tissue of the hair, toenails, and outer skin layers. There are at least four kinds of fungus that can cause athlete's foot.thlete's foot is a very common infection. The fungus grows best in a warm, moist environment such as shoes, socks, swimming pools, locker rooms, and the floors of public showers.