Hi and welcome to HcM.Thank you for your querry.
It can be hernia recurrence of course. But also hydrocele or varicocele
as well. CYst wouldnt hurt until it is inflammated. Also ther eis a possiblity that there was nerve damage
during the surgery and many patient experience pain after hernia repair
. YOu can do ultrasound
after 1-2 hours of standing.Hernia may ne seen then. WIsh you good health.