The American Academy of Dermatology (AAD) wants families to make a head-to-toe skin cancer self-exam an annual tradition. And what better way to do it than your birthday? Here’s a little mnemonic to remember what you’re looking for: Check moles and spots for your ABCDEs. During your self-exam, you should look for moles or pigmented spots that are Asymmetric, have an irregularly shaped Border, have varied Colors, measure a Diameter of more than 6 millimeters, or are Evolving (a mole or lesion that looks different from the rest, or one that has changed). It’s important to check yourself (and elder family members) every year for skin changes that look suspicious.