The health update comes just a week after Jackson shut down speculation that he had died. "The rumors of my death have been greatly exaggerated," he posted. "Please ignore all the stupid false rumors from people who seem to find humor in such topics."
Both messages are accompanied with pics of the 87-year-old patriarch at a beach resort, wearing a hat and sunglasses.
As of last Thursday, Jackson was still in the hospital and the family had been spotted visiting him, including wife Katherine and granddaughter Paris Jackson, as well as daughter Latoya Jackson.
As ET previously reported, Jackson suffered a stroke on his 87th birthday in July 2015.