The neonatal intensive care unit (NICU) environment has been found to be a major source of distress for older parents, but what about adolescent mothers? A prospective, descriptive study was conducted to describe adolescent mothers' perceptions of the stressors found in the NICU environment. Data were collected using the NICU Parental Stress Scale and a demographic data form. These 46 mothers found that the most stressful aspects of the NICU were parental role alterations and the infant's appearance and behavior. Less stressful were the sights and sounds of the NICU and communication with staff. Nurses should continue to identify and alleviate stressors that can compromise the parenting experience of mothers of all age groups.