The documents, which were unsealed Monday, include testimony from Stephen Ray Odom, the trauma surgeon who treated Tsarnaev in April. Odom said the worst injury Tsarnaev received was a gunshot wound to his face. Odom said it appeared a bullet entered the left side of Tsarnaev's mouth and exited from his lower left face. He also said the shot caused a fracture in the base of Tsarnaev's skull and damage to his throat and mouth.
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Tsarnaev was captured on April 19, four days after twin blasts killed three people and injured 264 others during the Boston Marathon. His older brother, Tamerlan Tsarnaev, was killed when Dzhokhar drove over him during a standoff with police.
Aside from the three people who were killed during the bombing, Dzhokhar Tsarnaev is also accused in the death of a Massachusetts Institute of Technology police officer who was killed days after the attack.
The documents also say federal agents questioned Tsarnaev for two days before reading him his Miranda rights. Those include the right to remain silent and the right to legal counsel. But the agents used a "public safety exception" to question him without advising him of those rights.
Tsarnaev has pleaded not guilty to 30 charges. He faces the death penalty if convicted.