Most people think cancer happens suddenly — a lump, a scan, a biopsy. But as an oncology provider, I can tell you: the blood often starts changing long before that. Here are three patterns I see over and over: 1️⃣ Ferritin creeping up while iron looks “normal.” → Ferritin can rise when inflammation builds quietly over time. 2️⃣ Insulin trending higher even when your A1C is “normal.” → You can have normal blood sugar but still show early signs of insulin resistance — a major growth signal for abn