Phillies officials are braced for the possibility that reliever Mike Adams may need season-ending surgery to fix a labrum problem in his right shoulder.

Adams and the Phillies will know more after the 34-year-old right-hander is examined by Dr. Neal ElAttrache in Los Angeles on Tuesday.

“It could require some surgery, but we don’t know yet,” GM Ruben Amaro Jr. said before Monday night’s game against the San Diego Padres. “Our doctors are not recommending surgery, but we’ll see what [ElAttrache] says.”

ElAttrache performed surgery on Roy Halladay on May 15. (Halladay, by the way, is traveling with the team, feeling good, and doing some light tossing. “Tossing is the key word,” said Halladay, who still has miles to go in his rehab but hopes to pitch later this season.)

Adams has been bothered by biceps tendinitis in front of his shoulder for several weeks. That is often a symptom of a labrum problem. Adams had labrum surgery in October 2008 and Amaro acknowledged that an MRI administered over the weekend revealed some “changes” in Adams’ labrum.

The Phillies hoped the offseason signing of Adams would cure their bullpen woes, but it clearly hasn’t. Phillies relievers entered Monday night’s game against the San Diego Padres with the worst ERA in the majors (4.67) and they were allowing 40 percent of inherited runners to score, also a major-league high.

Adams has been part of the problem -- he has a 3.96 ERA and has allowed five homers in 25 innings -- and his health could prohibit him from being part of the solution.