The 30-year-old is confident he will be fit for pre-season training in July, as the club prepares for Europa League football next term.
"For the last two months of the season my groin has felt quite tight, but I wanted to play through the pain and finish the season," said Britton.
"I missed parts of training in that time but it was necessary to ensure I was available for the games, although I did struggle a little bit in the last four to six weeks.
"I've had one hernia since December, and a scan around four weeks or so ago showed I had another one. I've had a hernia operation before, around 2005, so I know the procedure.
"It means I will come in during the summer to do some rehab which will make sure I'm ready for pre-season training.
"Next season will be huge for us as we will be involved in four competitions, so I want to make sure I'm fit and ready when we report back for pre-season."