The nurses could benefit from learning the landmarks for IM injections. My 6 month old bleed after his vaccinations. Same thing happened on his 4 months vaccinations. Same nurse administered the injection. I know there might be some bleeding after IM injections but it shouldn't soaked through the band aid and through his pants. I am a registered nurse myself and I haven't seen my patients bleed like that after an IM injection. 
OSW Pediatrics Ste 310