Can a lot of sneezing affect inguinal hernia repair 4 weeks after surgery?

Yes: Any activity that increase abd pressure or stress the abd muscle run a risk of mesh migration or displacement. Sneezing can def do that.

Shouldn't : While anything can happen, sneezing shouldn't affect the outcome from your hernia repair. If you think there's a problem based on pain or a recurrent lump, be sure to see your surgeon. Good luck!