From last few days I feel pain while I go to potty. I feel pain in my back and when I wash it after completing then I feel something swollen up near the hole from where the waste comes out. I feel pain in washing that area and when I sit then also I feel pain and while walking also. The swollen part fells me round in shape and it pains a lot while doing potty. Though I think blood never came till now from that region. I think it is piles. Please help me to recognise it. I am 17 years old boy.