Mon, 04 May 2026 01:02:15 +0000

Is That Red Bump on Your Dog More Than a Scratched Skin Spot? Histiocytoma Revealed! You’ve seen it: a small, red, raised bump on your dog’s skin. At first glance, it might look like a minor scratch or irritation. But could it be something more? One common but often misdiagnosed condition in dogs is canine histiocytoma—a benign skin tumor that frequently resembles a minor skin scrape. If your dog has developed this bump, understanding histiocytoma can help you stay informed and decide the best course of action. ### What Is a Histiocytoma in Dogs? Histiocytoma is a rapid-growing, non-cancerous skin tumor caused by an overgrowth of histiocytes—cells found in the skin’s immune system network. Though most histiocytomas are harmless and resolve on their own, recognizing them early is key to proper care. These growths typically appear as small, red, pink, or brown bumps that may resemble minor wounds but don’t heal like typical scratches or insect bites.