Fasciitis is an inflammation of the fascia, a connective tissue that surrounds muscles, nerves, and blood vessels. This condition can cause pain, swelling, and stiffness in the affected area. One common type is plantar fasciitis, which affects the bottom of the foot and can lead to heel pain. Fasciitis can result from various factors, including injury, infection, or underlying health conditions. Treatment often involves rest, physical therapy, and anti-inflammatory medications. In severe cases, surgical intervention may be necessary to relieve symptoms and restore function.