Risks of rectal feeding and rehydration include damage to the rectum and colon, triggering bowels to empty, food rotting inside the recipient's digestive tract, and an inflamed or prolapsed rectum from carless insertion of the feeding tube.
Mohammed was also subjected to rectal rehydration "without a determination of medical need".
The CIA administered rectal rehydration to Khalid Sheikh Mohammed "without a determination of medical need" and justified "rectal fluid resuscitation" of Abu Zubaydah because he "partially refus[ed] liquids".
The report found that CIA leadership was notified that rectal exams may have been conducted with "Excessive force", and that one of the detainees, Mustafa al-Hawsawi, suffered from an anal fissure, chronic hemorrhoids and symptomatic rectal prolapse.
Here are some of the techniques known to have been used, and the effects on detainees: The torture report contains new information on the CIA's use of rectal feeding and rehydration.
A milestone report by the Senate intelligence committee revealed that the use of torture in secret prisons run by the CIA was even more extreme than previously exposed, and included "rectal rehydration" and "rectal feeding", sleep deprivation lasting almost a week and threats to the families of the detainees.
The CIA's chief of interrogations characterized rectal rehydration as a method of "total control" over detainees, and an unnamed person said the procedure helped to "clear a person's head".
Prisoners were subjected to "rectal feeding" without medical necessity.
The report highlights one prisoner later diagnosed with anal fissures, chronic hemorrhoids and "symptomatic rectal prolapse".
CIA operatives subjected at least five detainees to what they called "rectal rehydration and feeding".
The report details how accused USS Cole bomber Abd al-Rahim al-Nashiri was placed "in a forward facing position (Trendelenburg) with head lower than torso", whilst undergoing rectal feeding.
