[The injection abscess--a sequela of unsuitable cannulas?]

Skin-cylinders punched out by hypodermic needles, are discussed as an influencing factor in abscess forming after injection. Up to now these skin-cylinders are regarded as unavoidable. The authors show, that with different types of hypodermic needles the frequency of skin-cylinders widely differs. They resume, that the frequency of post injection abscesses could be reduced by the use of better suitable needles.