The plantar fascia (PF) is a thick band of tissue that connects your heel bone to your toes. It helps support the overall shape of your foot, especially when standing, and helps with shock absorption. Irritation and scarring of the plantar fascia, known as plantar fasciitis, is one of the most common causes of heel pain.
Ten percent of people have pain in the bottom of the heel at some point in their life. The most common cause is plantar fasciitis, which can result from overactivity, improper shoes, flat feet or excessive weight on the feet.