The plantar fascia is the thick tissue on the bottom of the foot. It connects the heel bone to the toes and creates the arch of the foot. When this tissue becomes swollen or inflamed, it is called plantar fasciitis.
Swelling occurs when the thick band of tissue on the bottom of the foot (fascia) is overstretched or overused. This can be painful and make walking more difficult.
You are more likely to get plantar fasciitis if you:
- Have foot arch problems (both flat feet and high arches)
- Run long distances, downhill or on uneven surfaces
- Are obese or gain weight suddenly
- Have a tight Achilles tendon (the tendon connecting the calf muscles to the heel)
- Wear shoes with poor arch support or soft soles
- Change your activities
Plantar fasciitis is seen in both men and women. It is one of the most common orthopedic foot complaints.
Plantar fasciitis was commonly thought to be caused by a heel spur. However, research has found that this is not the case. On x-ray, heel spurs are seen in people with and without plantar fasciitis.