Plantar fasciitis is the leading cause of heel pain in adults. The plantar fascia is a strong ligament on the underside of the foot's surface that attaches the heel bone to the ball of the foot, which plays a very important role in maintaining the arch of the foot. As the arch of the foot is subjected under stress, it can lead to pain in the heel area. https://www.sooperarticles.com/health-fitness-articles/diseases-articles/there-no-one-treatment-plantar-fasciitis-1899775.html