Is the most common cause of heel pain which is the flat band of tissue (ligament) that is connecting your heel bone to your toes. It also supports the arch of your foot. In case of straining the plantar fascia, it gets inflamed, swollen, weak and irritated.
People who are overweight, people who have jobs that requires long hours of standing up, working on hard surfaces.
People with very high arches or flat feet are more prone to plantar fasciitis.
Physical exercising like stretching is one of the treatments with great results. Another one is the anti-inflammatory medication.