Plantar fasciitis is the leading reason of discomfort in the heel in adults. The plantar fascia is a robust ligament on the underside of the foot that connects the calcaneus to the ball of the foot, thus plays a crucial role in supporting the arch of the foot. As the arch of the foot is placed under stress, it can lead to pain and discomfort. https://www.sooperarticles.com/health-fitness-articles/diseases-articles/there-no-one-treatment-plantar-fasciitis-1899775.html