Is this a 'fat person' thing or should I see a doctor?

it's normal but I haven't had one in forever once I realized that if you moisturize your thighs everyday with a fragrance free lotion then you won't have to worry about it

I use to get them and I used Noxema on them but I no longer have them

Been there done that.... It is chaffing related and there is an awesome product I started using that completely got rid of the problem.... It is called Bodyglide..... Here is a link to it and I normally by it off of Amazon...

http://www.google.com/products/catalog?q=body+glide&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&tbm=shop&cid=3684307296863859535&sa=X&ei=eJUiT8y4FoK_gAfe9ID-CA&ved=0CGMQ8wIwAQ

Good Luck
Ed

I do not have this problem, but a friend said she uses BODY GLIDE.? Hope that helps , if you can find it.:) Good luck.