H.G.
Hi! My son who is now 9 months old had a hydrocele. When he was 3 month old I noticed it before his 3 month appt and was referred to a pediatric urologist. I actually went to a pediatric surgeon as they are the ones who do this kind of surgery more frequently. (It helps that I am a pediatric oncology nurse) Anyway I went to Dr Darryl Hermann at Pediatric Associates- multiple offices- in Plano. The current recommendation is to wait until one year of age for it to resolve on its own before surgery. Of course if it becomes painful etc then they will operate sooner. In my son's case it resolved on his own around 6 months.
I hope this helps and I was so grateful for the reassurance given to me by the surgeon.
H.