Plantar fasciitis is the most common cause of heel pain.
The plantar fascia is a ligamentous band of connective tissue that runs along the sole of your foot to stabilize underlying structures and support the arch of your foot. Injury to the plantar fascia, such as bruising or overstretching, can cause inflammation of this ligament resulting in heel pain (often described as a ‘stabbing’ pain). The pain can be experienced in one or both feet and is often worse first thing in the morning or after rest.
Plantar fasciitis is common in middle-aged people, but is also common in younger individuals who are highly active – such as athletes or soldiers.