Why Do We Have Birthmarks?

View as a webpage Daily Tuesday, May 30, 2017 Why Do We Have Birthmarks? Are they always harmless? Should they be checked by a doctor? Here's what you should know. View Slideshow ›   •  What's Stealing Your Concentration?   •  How Coffee and Tea Can Be Bad for Your Waistline   •  The Truth About Trying to Conceive New WebMD Pregnancy App The most trusted pregnancy information is just a tap away. Get the Free App Now › In the News • Could an Old Drug Help Autism? • Regular Exercise May Delay Aging by 9 Years • Alzheimer's Deaths Jump 55% • 'Baby Boxes' May Help Prevent SIDS • Psoriatic Arthritis Drug Shows Promise From the Message Boards • Is Compression Underwear Safe for Men? • 'I Need to Lose 50 Pounds ... Help' • 'Things That Help Me With Chronic Pain' Featured • What Chronic Constipation Does to the Body • Keeping a Positive Attitude With MS • More Reasons to Love Strawberries • First Aid for Eye Problems • Other Uses for Birth Control ADVERTISEMENT ADVERTISEMENT     From Our Sponsor • What to Look for in Pet Food   ADVERTISEMENT   ADVERTISEMENT     WebMD.com   |  Mobile Apps WebMD Privacy Policy   © 2017 WebMD, LLC. All rights reserved. WebMD Office of Privacy | 1201 Peachtree Street, NE | Atlanta, GA 30361