Plantar fasciitis is one of the most common conditions causing heel pain. It involves inflammation of the plantar fascia — a tough, fibrous band of tissue that runs along the sole of the foot. The plantar fascia attaches to the heel bone (calcaneus) and to the base of the toes. It helps support the arch of the foot and has an important role in normal foot mechanics during walking.
Tension or stress in the plantar fascia increases when you place weight on the foot, such as withstanding. The tension also increases when you push off on the ball of the foot and toes. Both of these motions occur during normal walking or running. With overuse or in time, the fascia loses some of its elasticity or resilience and can become irritated with routine daily activities.
Inflammation and pain in the fascia can be caused by:
Less commonly, plantar fasciitis may develop due to other medical conditions, such as lupus or rheumatoid arthritis.
Plantar fasciitis causes pain in your heel. It’s usually worse when you take your first steps in the morning or after you’ve been sitting for a long time. It tends to feel better with activity but worsens again after you spend a long time on your feet.
Risk Factors
You’re at greater risk of plantar fasciitis if you:
Your doctor will ask about your symptoms and check your feet to see where you’re having pain. They sometimes want you to have imaging tests to make sure something else isn’t causing your problem. These tests include: