Hello, Bruising of the skin commonly occurs due to thinning of skin. However other conditions related to unexplained bruising are injured area that goes numb or when small blood clots form underneath the skin, stretching or tearing of the muscle or tissue may also cause bruising, etc. Medical conditions that cause easy bruising are vitamin C and vitamin K deficiency, bleeding disorders, varicose veins, cancer, etc. Taking excessive alcohol may also cause bumping into the thighs and hence easy bruising. To get rid of bruise marks, apply aloe vera based skin cream, vitamin K cream. Take adequate amount of food containing vitamin C. Ointment Thrombophob when applied on the area affected is also very effective in reducing bruise marks with small blood clots. However, since such bruise can also be due to underlying health condition, you are suggested to get clinically examined by a GP, get required tests and investigations done so that you can be treated at the earliest. In the meantime, avoid addictions if any. Take care of your hygiene and do not scratch or touch. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K., General & Family Physician