Skin Problems

Skin problems, ranging from mild acne to skin cancer, affect people of all ages. Learn more about skin problems at HowStuffWorks.

Learn More / Page 7

Vinegar is a wonderful -- and inexpensive -- addition to your beauty regimen. Vinegar can help restore the natural acidity of your skin. Learn more about how vinegar can help with beauty.

By Christine Halvorson

It's the bane of countless teenagers and a frustrating surprise for many adults too. Do doctors know what causes acne?

I noticed a light brown spot emerge on my newborn son's forehead when he was about three days old. It never went away. Everyone calls it a birthmark. What is a birthmark?