According to sources, Fumo recently underwent a prostate biopsy, which could be related to the bleeding.
He was transported to Hahnemann University Hospital Monday afternoon.
The 70-year-old Fumo was convicted in 2009 for stealing more than four million dollars from the state of Pennsylvania and two nonprofit groups.
He spent four years behind bars on corruption charges before returning to his Philadelphia home in August for finish his sentence.
Fumo's sentence is up in February.