Plantar fasciitis is a condition characterized by pain or tenderness in the heel or bottom of the foot, stiffness or reduced mobility, swelling or inflammation, tingling or numbness, and aching or burning sensations in the foot. The pain associated with plantar fasciitis is usually described as a stabbing sensation, which is often worse in the morning or after long periods of standing or sitting. It is most commonly seen in middle-aged people and athletes who engage in activities that place a lot of stress on the feet, such as running or jumping, and women are also more likely to develop plantar fasciitis than men.