i'm sorry to hear your dad is going through this. it sounds frightening. i would not jump to an immediate diagnosis of cancer. while this unexpected bleeding certainly should be investigated by a health care professional there could be many causes for this bleeding that have nothing to do with cancer. that said i would suggest your dad see a health care provider as soon as possible. any time a person develops a new symptom (such as bleeding) it's worth getting it checked out. hope this helps. wishing your dad all the best!
my dad had his bladder removed due to cancer. has a urostomy. now after 4 years he has blood from his penis and pain. he is not sexually active nor masturbates". no trauma or injury. just pain and a slow oozing of bright red blood. no other symptoms or changes with his urostomy. he does have a large abdominal hernia from the bladder removal surgery done in 2008. cancer?