A self skin check is about knowing your "baseline" so you can spot changes. You'll need 10 minutes, a full-length mirror, a hand mirror, and a bright room.1. The Red Flags (ABCDE)Check every mole or spot for these signs:A - Asymmetry: One half doesn't match the other.B - Border: Edges are ragged, notched, or blurred.C - Color: Shades of tan, brown, black, or even red/blue.D - Diameter: Larger than 6mm (a pencil eraser).E - Evolving: Changing in size, shape, color, or starting to itch/bleed.The "Ugly Duckling": Any spot that looks completely different from all your other moles.2. The 7-Step Body ScanGo in this order so you don't miss anything:Face & Ears: Check your nose, lips, and mouth. Use the hand mirror for the back of your ears.Scalp: Use a comb or blow dryer to part your hair in sections to see the skin.Hands & Arms: Check palms, backs of hands, between fingers, and under fingernails. Check forearms and upper arms.Torso: Check your chest and belly. Women should check underneath breasts.The Back: Facing away from the big mirror, use the hand mirror to check your neck, shoulders, upper back, and lower back.Glutes & Legs: Check your buttocks and the backs of your legs.Feet: Sit down. Check the tops, soles, heels, between toes, and under toenails.3. What to Do NextIf you find a suspicious spot:Photograph it: Place a coin or ruler next to it for scale.Monitor it: Check again in one month to see if it has changed.