yentingyenta -“i saw you changed the scenario; it could of been a dirty rock, knife, or anything. its plausible he got a cut or wound in the area providing entrance for infection but there was no mention of something like that in the history.”
That’s why I picked needle. A needle can leave a deep seated infection without any obvious disruption on the surface of the skin of the thigh/hip.
“the prob is the kid is a HORRIBLE historian. has a hard time differentiating between past and present. getting info from him (or mom) is not easy.”
The only chance on getting to the bottom of what’s going on is to have him visited by the hospital’s social worker. He/she can delve into the mystery surrounding this case and can investigate if he was attacked.