Hi, I'm a 31 year old male, I've had a red oval bruise on my forearm for about a month, I don't know where I could of gotten it from, it doesn't hurt or itch, it's been the same colour for weeks it's approx. 2 inches long and 1.5 inches wide. Also I've noticed another two red bruise marks, one on each upper arms and a little larger in size. Not sure what it could be, was thinking ringworm!? but doesn't really look or seem like it could be that, any thoughts>?