PKR de facto leader Anwar Ibrahim, who last month was rushed to hospital after suffering back and shoulder pains, has undergone a spinal surgery in Turkey.

He added that he is also scheduled for another surgery next week, this time on his shoulder.

"As a recovery effort for my condition experiencing lumbar central stenosis secondary and central disk herniation, I had to undergo a follow-up spinal surgery operation at Medipol Mega University Hospital, Istanbul.

"Alhamdulillah, my health condition has improved after the surgery and I am scheduled to undergo another surgery on Thursday on the right side of my shoulder due to rotator cuff injuries," he said in a Facebook posting today.

Anwar said he was also visited by Turkey president Recep Tayyip Erdogan and his wife after his surgery.

I extended a message of goodwill and congratulations from Yang di-Pertuan Agong and (Prime Minister) Dr Mahathir Mohamad following the electoral success of the AK Party on June 24.

"Surely this victory will bring a positive impact to the state of democracy in the contemporary Islamic world," he said.

Anwar said he also expressed Malaysia's desire to strengthen the bond and cooperation with Turkey.