Plantar fasciitis is one of the most common causes of foot pain. It results from irritation of a thick band of tissue, called the plantar fascia, that runs across the bottom of your foot. This fascia connects your heel bone to your toes.People with plantar fasciitis experience pain across the bottom of the foot, typically near the inner part of the heel. Discomfort with plantar fasciitis is more common in the morning after waking up and with strenuous exercise like running.Some people also feel