Should i be worried about a new mole that has appeared on my leg? (i'm a 17 year old, fair skinned, redhead)

Watch it, no worry: Please keep a watch on it like any other mole. If it doubles in size, changes color, becomes irregular, bleeds, ulcerates or develops a nodule, see a doctor. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex. Get HPV vaccine.