Mubarak, 84, is serving a life sentence in Cairo's Tora prison for his compliance in the killing of protesters during the country's 2011 uprising, al-Masry al-Youm reported.
Egypt's state news agency MENA reported Saturday that while Mubarak was in his hospital room's bathroom, he slipped and suffered a head injury and bruising.
Mubarak has been suffering from health problems since he was sentenced.
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