Common causes of foot problems in adults include athlete's foot, ingrown toenails, sprains, bunions and corns, according to the American Orthopaedic Foot & Ankle Society. Other causes of foot problems in adults include warts, neuromas and nail fungus.
Athlete's foot appears as a rash on the foot and commonly occurs between the toes, explains the American Orthopaedic Foot & Ankle Society. Ingrown toenails are also common foot problems in adults and can be avoided by cutting the toenails correctly. Ankle sprains are quite common, but sprains of the foot are not as common. If a person believes the foot or ankle is sprained, an X-ray is needed to ensure the foot is not broken.
Bunions are known foot problems in some adults, and they are sensitive to the pressure that shoes often put on the feet, states the American Orthopaedic Foot & Ankle Society. Wearing loose shoes or sandals can help to ease the pain associated with bunions. Corns may develop from poorly fitting shoes and can be treated by wearing the right shoes. Warts may appear on the surface of the foot, and nail fungus can develop over the toenails. Neuromas, which cause irritation to the nerves, may also develop on the feet of adults causing swelling and pain.