 [ Symptoms ] is a five inch penis normal for a 15 year old it that normal [ Disease ] erect or flaccid a five inch penis is within the normal variation range for males a man is not judged by the size of his penis but by the size of his heart the best artists tend to use smaller brushes hi 5 inch is erect or flaccid at 15 your not doing bad and do not forget your still growing i would not worry to much just yet if its flaccid your a shower if its erect you are in the average range for your age you have no problems good luck yes the average erect penis size is 6 inches and you have many more years to grow however you might want to consider using a penis health creme a few years down there road these help guys keep their penis skin smooth clean and odor free these things are very important when it comes to sex and intimacy i use a creme called man1 man oil and it helps bigtime good luck