I fell and hit the top of my knee on a concrete block. i scraped it and bruises are around it. it swelled up for 2 days so far. it was aching for a day and a half. it hurts when i bend my knee. i have to put my leg straight to make my knee stop hurting wh

Knee bruise: Could be just contusion, so ice, rest elevate try crutches, motrin /alelve ( if not allergic). if still having pain in 2-3 days with difficulty walking get xray ( or if you want get it sooner-today ) just to rule out patella fracture. without xray we can not tell if it is fractured. F/u with doc/urgent care. Bruises take about a week to start feeling better, fractures need treatment