Hi!
welcome to healthcaremagic.com.Please do a ultrasound abdomen to know whether the injury has affected kidney or only
soft tissue ,Also it would do good to take a
xray of that side including the ribs and vertebrae affected to rule out
fracture.Minor kidney injury doesnt cause hematuria(
blood in urine).If all goes well take a course of anti-inflammotory pills like brufen for 2-3 days .It should subside.Take care.