When you do catch him up, have a good look between sheath and anus. We once had a ram lamb which was completely open the whole way down the urethra, and he dripped urine all the time. His scrotum was bifurcated by this, and we didn't ring him because of the danger of infection. We had to keep him well washed so he didn't stink, until he went for slaughter at about 7 months (Shetland). The vet said he was a hermaphrodite but he wasn't - it was epispadias.