Pain in the heart of the right foot can be caused by a variety of factors, which can be seen in overwork and other lifestyle factors, or it can be a symptom of a certain disease, such as plantar fasciitis, gout and so on. 1. Overwork: When overworked for a long period of time, it may cause pain in the heart of the right foot. It is usually relieved by rest. 2. Plantar fasciitis: It is a kind of sterile inflammation, which can be caused by flat feet, diabetes and other factors. The main symptom can be seen in the heel, the center of the foot against the back part of the pain, unilateral is common. 3. Gout: it is a kind of disease caused by high blood uric acid, which can be caused by drugs, improper diet and other factors. Initially, there may be no obvious symptoms, when uric acid accumulates in the body for a long time, it may show pain in the heart of the foot, Achilles tendon and other parts of the body, fever and so on. There may be many other reasons for the pain in the heart of the right foot, so you should go to the hospital in time and undergo the relevant hospital tests to clarify the cause of the disease and actively cooperate with the doctor’s treatment.