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 germ called fungus. It can be spread to others by sharing towels or shower stalls. You may also get it more easily if you use public locker rooms or swimming pools. Your chances of getting it are greater if you do not wash your feet or change socks every day.