Students with physical symptoms and diseases may be at an increased risk of peer victimization. This study examined the associations of several medical conditions (obesity, asthma, allergy, epilepsy, and diabetes) with experience of physical, verbal, and relational victimization among children. A sample of 6,233 fourth-grade students from 314 elementary schools in Taiwan was recruited for the analysis. The mean age of the sample was 10.5, with an even distribution of gender (50.3% male and 49.7% female). Children with asthma, allergy, and epilepsy reported higher frequencies of peer victimization. Those who took daily medications or received treatment were also at a higher risk of being victimized. Diabetes and obesity were not found to be associated with peer victimization. The findings highlighted that children with physical conditions suffer maltreatment from peers. Sensitivity training should be provided to school health professionals, so they can evaluate the risk of victimization among students with special needs during assessment.