Occult blood may refer to:
- Fecal occult blood, blood present in the feces that is not visibly apparent
- Hematuria, the presence of red blood cells in the urine
Famous quotes containing the words occult and/or blood:
“There is no more foul or relentless enemy of man in the occult world than this dead-alive creature spewed up from the grave.”
—Guy Endore, and Tod Browning. Prof. Zelenn (Lionel Barrymore)
“No person connected with me by blood or marriage will be appointed to office.”
—Rutherford Birchard Hayes (1822–1893)