Which condition is characterized by inflammation of the plantar fascia?

The condition characterized by inflammation of the plantar fascia is plantar fasciitis. The plantar fascia is a thick band of tissue that runs across the bottom of the foot and connects the heel bone to the toes. When this tissue becomes inflamed, it leads to pain, particularly in the heel or along the arch of the foot, especially noticeable with the first steps in the morning or after prolonged periods of sitting.

In plantar fasciitis, the inflammation is typically caused by repetitive strain, excessive running, or certain foot mechanics, such as flat feet or high arches. The pain often improves with activity but may worsen after rest periods. Recognizing that plantar fasciitis involves the specific inflammation of the plantar fascia’s tissue is crucial for proper diagnosis and treatment, thus making it the correct answer in this context.

The other conditions listed involve different anatomical structures or causes, and each has distinct characteristics that do not involve the inflammation of the plantar fascia.