The plantar fascia is a ligament that helps support the foot arch. It connects to the heel and fans out to connect to the metatarsals (base of the toes). Irritation or damage to this ligament due to repetitive stress results in pain and inflammation under the base of the foot and is called Plantar Fasciitis. Stressors include prolonged standing, obesity, poor footwear, tight calf muscles, pes planus (fallen arches) or pes cavus (high arches). Plantar fasciitis typically presents as heel pain that radiates along the underside of the foot, worst when getting out of bed in the morning.