Jaw pain is discomfort or soreness in the jaw joint, surrounding muscles, or adjacent structures, and may range from mild aching to sharp, persistent pain that interferes with chewing or speaking. It is commonly associated with temporomandibular joint (TMJ) disorders, teeth grinding (bruxism), dental infections, sinus problems, or muscle strain, but it can also be related to arthritis, nerve irritation, or, in rare cases, heart conditions that refer pain to the jaw. Symptoms may include clicking or popping sounds, limited jaw movement, headaches, ear pain, or facial tenderness. Treatment depends on the underlying cause and may involve rest, stress reduction, dental care, anti-inflammatory medications, physical therapy, or corrective dental appliances. Persistent, severe, or unexplained jaw pain warrants medical or dental evaluation to rule out more serious conditions.