"It sounds like surgery is almost 100 percent from the first opinion," Myers told MLB.com. "They told me that my hip is (messed) up."
X-rays and an MRI exam Thursday revealed bone spurs and a possible tear in the labrum.
Phillies' General Manager Ruben Amaro said Myers will seek a second opinion from a hip specialist before any decision is made regarding surgery.
"It is possible that Brett will not make his next start," Amaro said. "That decision, as well as any decision on a possible disabled list stint or surgery, will be determined at a later date."
Myers left the game against the Marlins with what the team originally said was inflammation in the hip. He gave up seven hits and five runs -- three of the runs coming in the sixth inning as Myers could be seen wincing in pain.
He has a 4-3 record this season in 10 starts with a 4.66 ERA.