If you’re an adult woman, chances are at some point a doctor has explained how to do a Breast self-exam. They show you how to use your hands to press down on your breasts and feel for a lump. And then the conversation ends. But there’s so much more to know! For starters, a cancerous lump feels like a lemon seed—it’s hard, and will rarely budge when you push up against it. Plus, lumps aren’t the