Foot and ankle problems usually fall into the following categories:
- Acquired from improper footwear, physical stress, or small mechanical changes within the foot.
- Arthritic foot problems, which typically involve one or more joint.
- Congenital foot problems, which occur at birth, are generally inherited.
- Infectious foot problems, which are caused by bacterial, viral, or fungal disorders.
- Neoplastic disorders, usually called tumors, which are the result of abnormal growth of tissue and may be benign or malignant.
- Traumatic foot problems, which are associated with foot and ankle injuries.
A rash on the foot can have a variety of causes. It may be a form of eczema, which is usually very itchy. It also may be an allergic reaction to something with which your feet have come into contact, such as materials in your shoe or poison ivy. Another common reason for a foot rash is athlete’s foot, which is caused by a fungal infection. Only by having the rash examined will you be able to get a precise diagnosis. A foot and ankle surgeon will determine the cause of your rash and provide appropriate treatment.