Those are femoral pores and they look plugged- you can soak him in some betadine solution make it look like a weak tea for 10 minutes or so -do this till they soften up real soft so when you gently squeeze them the stuff will come right out - you can also try a soft tooth brush to try and get the waxy stuff out- or you can let him crawl around on some rough decor so when he rubs on them it will help them unplugMy 6 year old male has these bumps on underside of legs. Can someone please tell me whats going on here? Thanks in advance.