There is provided a medical pressure-sensitive adhesive composition including an acrylic copolymer obtained by copolymerizing monomer components containing (a) at least one kind of a monomer of a (meth) acrylic acid alkyl ester and (b) at least one kind of a monomer of an N-hydroxyalkyl (meth) acrylamide, wherein: a content of the (meth)acrylic acid alkyl ester monomer (a) with respect to a total amount of the monomer components is 50 weight% to 99.9 weight and a content of the N-hydroxyalkyl (meth) acrylamide monomer (b) with respect to the total amount is 0.1 weight% to 20 weight% and the monomer components are substantially free of a monomer having a carboxyl group. The medical pressure-sensitive adhesive composition of the present invention is particularly suitable for applications such as medical patches and patch preparations.
