not notable and not an amputee
However look at his stomach. There is a blood smudge or a large area where the blood soaked through his shirt and stained his skin. the shirt as been partially removed.
The blood on his shirt origially may have contributed to the blood on his pants but it's unclear.
Because I've had blood bleed through clothes and stain my skin like that, I recognize it. It is the most real thing in the picture that Ive seen.