Plantar fasciitis is pain and inflammation of the plantar fascia, the tissue at the bottom of your foot that connects the heel bone to the toes. The plantar fascia also supports the arch. If you strain the plantar fascia, it can develop small tears and cause heel pain when you stand or walk.
Plantar fasciitis can be caused by running or other sports. It also may occur in people who are overweight or who have high arches or flat feet. You may get plantar fasciitis if you walk or stand for long periods, or have a tight Achilles tendon or calf muscles.
You can improve your foot pain with rest and other care at home. It might take a few weeks to a few months for your foot to heal completely.