there is no lead in a "lead" pencil anymore just graphite so you won;t get any lead poisoning. assuming the area is not infected the only problem would be the possibility of a permanent black "tattoo" from the graphite. i actually have one on my knee from being stabbed by a pencil in 7th grade (i deserved it). if there is a black stain in the wound this should be removed to avoid a permanent black spot that may be cosmetically unattractive.
stabbed with lead pencil. is there any danger?