Plantar fasciitis occurs when the tendon in the bottom of the foot becomes inflamed and painful.
The American Orthopaedic Foot and Ankle Society says risk factors include:
- Being female.
- Being overweight.
- Working in a job in which you must walk around or stand on a hard surface for long periods.
- Walking or running long distances regularly.
- Having tight calf muscles, flat feet or high arches.