Hi can anyone give me advice please. I just changed my boyson nappy. His a 7week old prem. Born at 36weeks and weight 4lb 14. Anyway iv just done his nappy and noticed swelling just above his winkle (part you sprot hairs) the swelling looks and fills like his balls but it wasn't like that earlier. His not liking me lightly touching it too. Iv had 2 other boys but never seen this. Please can someone give advice