Plantar fasciitis is the inflammation of the plantar fascia, which is the connective tissue on the bottom surface of your feet. The plantar fascia supports the arch of the foot, and is subject to tension twice as much as your body weight. When this area is repetitively overstressed, it can lead to chronic pain and inflammation. Additionally, the continual presence of plantar fasciitis is related with the formation of heel spurs.
The most common initial symptom of plantar fasciitis is pain at the heels during the first steps during the morning. The pain, when left untreated, can result in chronic inflammation of the bottom of the foot and back of the heel. The area may become visibly red, tender, and slightly swollen.