People suffering with eating disorders, such as anorexia and bulimia nervosa, often refer distorted perception of specific body parts (e.g., thigh or stomach). Here we examined whether these experienced distortions of body parts can affect tactile perception of an object in contact with the skin. Ten young female participants with eating disorders (4 anorexic, 3 bulimic, 3 non-specified) and 13 healthy age- and gender-matched controls were touched with the two tips of a digital caliper on a body part. Between blocks the touched body-parts were either affected (i.e., thigh or stomach) or unaffected (i.e., forehead, forearm) by the reported eating disorder distortions. Participants received tactile stimulation with their eyes closed, and afterwards chose among several visually presented lines which best matched the perceived tactile distance. All participants underestimated tactile length on the skin. However, underestimation was significantly smaller for eating disorder patients, selectively for touches delivered to the disorder-affected body parts (i.e., thigh or stomach). This finding is compatible with the percept of a distorted (enlarged) body part. Our findings provide the first non-subjective evidence of the perceptual consequences of body distortions in patients with eating disorders.