Aspects of the technology described herein relate to displaying locations on images of body portions. Based on ultrasound data collected from a subject by an ultrasound device, a first location on an image of a body portion may be determined. The first location on the image of the body portion may correspond to a current location of the ultrasound device relative to a subject where the ultrasound device collected the ultrasound data. A first marker may be displayed on the image of the body portion at the first location. A second location on the image of the body portion may be determined, where the second location on the image of the body portion corresponds to a target location of the ultrasound device relative to the body portion of the subject. A second marker on the image of the body portion at the second location may be displayed.
