Bilbo

I've applied for the prospective marriage visa and earlier in the year, I was in hospital for 3 days for a stomach ulcer. 10 years ago I was in hospital overnight for a stomach ulcer too. I know if I was to have my health check now that I would pass, but could the visa be refused based on the medical history of having a stomach ulcer twice? Has anyone declared any extended hospital stays and still had their visa granted?