I know this is a weird question but my dog (miniature dachshund just over a yaer old) licks himself..A LOT. It appears like he has been chewing on his penis and there are actual sores around the exposed area closer to his body. Could it mean there's something wrong (infection or something) or is it a nervous habit? I don't know how often he does it. I rarely see him do it but whethe few times I have, he's in his crate and "excited" and licking it. It doesn't seem to bother him. He has been urinating and everything normally and it doesn't seem to hurt but I'm concerned. Should I take him to the vet or leave it alone? It doesn't look infected on the outside but I know it could get that way. Any suggestions would be helpful. Thanks!