What’s Causing the Hard Lump on My Cat’s Lower Jaw? (Vet Answer)

One reader wrote us about finding a lump on her 16-year-old male cat’s chin: Greetings. My 16-year-old male cat in good health had a rotten molar removed on the upper left side in July. In October I noticed a bone-hard lump, a bit larger than a bubblegum jawbreaker, under his chin on the right side. …

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