I have seen this correlation for a long time. I don't think you need to worry about your husband. I'm not allowed to give any medical advice here, but if I were you, I'll talk to my doctor about exactly WHAT procedure was used for vasectomy. Healing of scars happens when there is physical connection. For example, when a piece of body is surgically missing, it may not regrow.
Good example is teeth.
Please don't post anything under here. This bulletin board has been redesigned not to accept secondary postings. I have seen this correlation for a long time. I don't think you need to worry about your husband. I'm not allowed to give any medical advice here, but if I were you, I'll talk to my doctor about exactly WHAT procedure was used for vasectomy.