Right side bite pain, the reasons include the following: 1, muscle source factors: such as eating hard, difficult to chew things, chewing for too long, muscle spasm, etc., manifested as temporomandibular joint disorder and rattling, usually patients are easy to ignore, wait until the rattling sound disappears, the mouth can not be opened, patients bite something when they feel pain, mouth becomes crooked when opening, it is also a class of temporomandibular joint disorder disease, that is, the chewing muscle group It is also a type of temporomandibular joint disorder, that is, the dysfunction of the masticatory muscle group; 2. Displacement of the joint disk: it belongs to the temporomandibular joint disorder, and the displacement is generally reversible and does not produce pain. Generally irreducible displacement or damage to the posterior area of the articular disc will lead to occlusal pain and affect function and mastication. Patients should be treated in a timely manner. Taking hot compresses or eating soft foods will not solve the problem, and they should go to the hospital to clarify the cause and treatment method.