Tiger Woods has undergone another back surgery. This announcement was made on his website:

"Tiger Woods announced today that he has undergone successful back surgery to alleviate ongoing pain in his back and leg. 

"The surgery went well, and I'm optimistic this will relieve my back spasms and pain," Woods said. "When healed, I look forward to getting back to a normal life, playing with my kids, competing in professional golf and living without the pain I have been battling so long."    

Due to previous herniations and three surgeries, Woods' bottom lower-back disc severely narrowed, causing sciatica and severe back and leg pain. Conservative therapy, which included rehabilitation, medications, limiting activities and injections, failed as a permanent solution, and Woods opted to have surgery. The procedure was a minimally invasive Anterior Lumbar Interbody Fusion (MIS ALIF) at L5/S1. The surgery entailed removing the damaged disc and re-elevating the collapsed disc space to normal levels. This allows the one vertebrae to heal to the other. The goal is to relieve the pressure on the nerve and to give the nerve the best chance of healing. "