Some foot problems start in the foot itself, for example, resulting from a foot injury. Problems can occur in any bone, joint, muscle, tendon, or ligament of the foot.
Foot and ankle fractures are fairly common.
Discoloration of the toenails should always be evaluated by a doctor because it may be caused by certain disorders, including a fungal infection.
People who have diabetes or peripheral arterial disease (narrowing of the arteries that carry blood to the legs, arms, and possibly internal organs) should check their feet daily for signs of infection or ulcers and should have a doctor or foot doctor (podiatrist) check their feet at least twice a year (see Foot care).
Some Common Foot and Ankle Disorders by Location
Ball of the foot
Damage to the nerves in the foot (interdigital nerve pain, Morton neuroma)
Heel (back part)
Many foot disorders are successfully treated by changing a person’s footwear, such as wearing different shoes or using inserts or other devices placed in the shoe that change the position or range of movement of the foot to relieve pressure on affected joints or painful areas (called orthotics or orthoses).
Injections of an anesthetic into the affected joint or painful area can often relieve pain and decrease muscle spasms so that joints can move more easily, and a corticosteroid may also be injected to decrease inflammation.
If these treatments are not successful, sometimes surgery is needed to improve joint alignment and function and relieve pain.