Provided are a medical packaging container having a polyester resin (A1) including diol units and dicarboxylic units, the diol units including at least one diol unit in an amount of 1 to 30 mol% selected from diol units having a bridged alicyclic skeleton derived from a compound represented by formula (1), formula (2), or formula (3), the dicarboxylic acid units including dicarboxylic acid units having a naphthalene skeleton in an amount of 70 mol% or more； and a manufacturing method of the polyester for the container.
