TMJ dysfunctions are conditions affecting your jaw joints and surrounding muscles and ligaments. These conditions can cause several issues, including jaw pain, headaches and difficulty opening and closing your mouth.<br />You have two TMJs (temporomandibular joints) — one on each side of your face, just in front of your ears. Your TMJs connect your lower jawbone to your skull and help with movements like chewing and speaking.<br />Between 5% and 12% of the general adult population have some form of TMJ disorder. The condition is twice as common in women and people assigned female at birth (AFAB) (https://health.clevelandclinic.org/afab-and-amab-meaning/)than (https://health.clevelandclinic.org/afab-and-amab-meaning/) in men and people assigned male at birth (AMAB). People between the ages of 20 and 40 are most likely to develop TMD.<br />Types of TMD (temporomandibular joint dysfunction)<br />Healthcare providers classify TMDs into three categories:<br />Disorders of your jaw joints.<br />Disorders of your chewing muscles.<br />Headaches that result from TMD.