Ireland and Ospreys winger has been ruled out of the rest of the rugby season as he will have surgery to to cure an ongoing medical issue.
Having discovered he was suffering from high blood pressure earlier this year, the Irish wing has been put through a number of medical tests to identify the cause of the problem.
These tests have shown that he has, in the past, suffered a haematoma that is pushing into his left kidney, with further tests indicating that this is the reason for the raised blood pressure.
After considerable consultation with specialists in both Ireland and Wales, Tommy has opted to go down the route of surgical removal of the haematoma in an effort to solve the problem.
He is being operated on in Ireland today, before returning to Wales post-op to convalesce. Because of the surgery, he will not be able to play any further part for the Ospreys this season, ahead of his return to Ulster for next season.
Recovery time post-operation is unclear, but he could be sidelined for up to four months.
Tommy Bowe commented,"Having confirmed my move to Ulster during the Six Nations I was really looking forward to returning to the Liberty Stadium for the end of season run-in, to help the Ospreys towards hopefully another league title, and also, to say a big thank you to the region's incredible fans for all the support they've given me over the last four years.
"Obviously, this news unfortunately means that I won't get to wear the Ospreys shirt again, but it's important that I get this problem sorted as soon as possible."
"Hopefully, the Ospreys will have a home semi-final and final in May so that I can still get down to the Liberty to say farewell to the supporters."