House Speaker John Boehner moved Thursday to calm the speculation about Rep. Jesse Jackson Jr.'s health, telling reporters it's an issue between him and his constituents. 

"I just wish him well and hope to see him back soon," Boehner said. 

The speaker addressed Jackson's weeks-long absence from the Capitol a day after the congressman's office issued a statement saying he was being treated for a "mood disorder." The statement denied "rumors" that he was in rehab, as the Illinois Democrat faced a growing chorus in Congress calling on him to further explain his absence. 

While Boehner said Thursday the issue is between him and his constituents, other lawmakers have more forcefully urged Jackson to tell his constituents more about his condition. 

Both House Democratic Leader Nancy Pelosi, D-Calif., and Democratic Whip Steny Hoyer, D-Md., suggested Wednesday Jackson should clear up the confusion.