James Pattinson will undergo surgery and will be out of action for at least four weeks, according to a Cricket Australia media release on Thursday.
Cricket Australia chief medical officer Justin Paoloni said: " Pattinson will be having surgery tomorrow (Friday) for a non-cricket related medical condition in his lower abdominal region that has been troubling him during the latter part of the recently concluded VB Tour of India.
"James has undergone tests and consulted specialists since returning from India, and it was felt that surgery is absolutely necessary at this time. The recovery times will determined once the surgery is completed but James is expected to return to training in approximately four weeks,"
He was due to play for defending champions Kolkata Knight Riders in the Indian Premier League this year, but will now give the Twenty20 event a miss.
Pattinson's preparation for the Ashes is not expected to be affected but his availability for the ICC Champions Trophy will be determined at a later stage, the press release said.