Plantar fasciitis is one of the most common explanations of heel pain. It is caused by inflammation to the thick band that connects the toes to the heel bone, called the plantar fascia, which runs across the bottom of your foot. The condition is most commonly seen in runners, pregnant women, overweight people, and individuals who wear inadequately supporting shoes. Plantar fasciitis typically affects people between the ages of 40 and 70.
Plantar fasciitis commonly causes a stabbing pain in the heel of the foot, which is worse during the first few steps of the day after awakening. As you continue to walk on the affected foot, the pain gradually lessens. Usually, only one foot is affected, but it can occur in both feet simultaneously.
To diagnose plantar fasciitis, your doctor will physically examine your foot by testing your reflexes, balance, coordination, muscle strength, and muscle tone. Your doctor may also advise a magnetic resonance imaging (MRI) or X-ray to rule out other others sources of your pain, such as a pinched nerve, stress fracture, or bone spur.