Definition: Appendalgia is a term in Jewish medical practice, referring to a sudden, severe pain that occurs when the mouth or jaw is forcefully opened or pushed. It's typically described as sharp and stabbing, often radiating out from the affected area, and can be accompanied by severe bleeding or swelling of the face, throat, or jaw. Definition: Appendalgia is a medical condition characterized by sudden, severe pain in the mouth or jaw when the mouth is forcibly opened or pushed. It's usually described as sharp and stabbing, often radiating out from the affected area, and can be accompanied by severe bleeding or swelling of the face, throat, or jaw.