A printing control method for a printing apparatus that includes a controller, such that the controller: sets a plurality of first regions along a first direction on a print medium that is conveyed, and a plurality of second regions between two first regions of the plurality of first regions, on the basis of print data; and causes ink to be discharged from a print head to the plurality of first regions so as to print on the basis of the print data and also causes ink to be discharged from the print head to the second region determined on the basis of an indicator value for predicting poor discharging of ink in the print head.