I have blue marks that look like bruises on my leg that have been here for a couple of weeks. they are not bruises though and they are not sore?

Blue marks: These lesions would likely need to be examined and more history obtained to be able to provide you with useful input about the diagnosis or possible treatment.

Agree with Dr. F: If you are overweight, losing weight would be imperative. Have a healthy diet, exercise 30 minutes/day, drink plenty of water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/. Get HPV vaccine. Wish you good health!