I have four small (less then half eraser size) purple dots on the inside of my thigh. They are flat. I tend to worry about things b/c I have a history of ITP (only while pregnant) and I have a fibromuscular dysplasia. (had tears in my carotid and vertebral artery). I have good specialists, just try to stay out of the dr office when possible. Other than the rare disease. I am a Very healthy,107 lb, 35 year old women.