Why does toothache cause ear pain?

Jun 26, 2022 Source: Cainiu Health
Disease description:

I have mild tooth pain, which has also caused ear pain. I’d like to consult you: Why does tooth pain lead to ear pain?

Doctor's answer (1)
Dr. Zhang Liwen
Toothache causing ear pain may be due to conditions such as pulpitis. If pulpitis or similar dental conditions are present, severe pain may occur. Without effective treatment, referred pain may develop, stimulating areas such as the ear and head. Once diagnosed with pulpitis, treatment—such as pulpotomy and drainage surgery—can be performed at a hospital.