It will be Juan Carlos' fourth operation in 12 months, and the 12th time he has undergone surgery during his lifetime.
The 75-year-old monarch lowered his passenger-side car window and said, "Here I am again," to journalists and television cameras gathered outside La Merced clinic today.
The operation will be led by neurosurgeon Manuel de la Torre, a palace statement said.
Madrid: The King of Spain has arrived at a Madrid hospital where he is to undergo surgery for a herniated disc in his lower spine.
First Published: Sunday, March 03, 2013, 18:35