Hi, am 17 year old Boy & recently I noticed that my urine is Red i.e it contains blood &after sometime I started having pain on my right side nearKidny?

hematurea with pain. Hematurea with Rt flank pain has to be addressed ASAP, go see your 1ry care physician right away or go to ER, it could be stones in the urinary tract, infections, tumors, obstructions leading to hydrphrosis, pylonephritis & so on. You will also need a urologist consult. Take care & feel better. .