Loss is an inevitable part of life and grief is a natural part of the healing process. In this sense, the grieving process is universal. People commonly associate certain losses with strong feelings of grief. Although the concept of grief is a direct reminder of death, grief and loss can happen in different ways - death, divorce, deployment or other situations of abandonment. Different effects can influence how people understand and approach the grief process such as importance and place of the loss in life, cultural background, belief systems, etc. Having mentally retarded child is also a shocking and unexpected situation for parents who are dreaming about a healthy baby. Parents can experience grief at this process. In 1969, psychiatrist Elisabeth Kübler-Ross introduced what became known as the "five stages of grief." These stages of grief were based on her studies of the feelings of patients facing terminal illness, but many people have generalized them to other types of negative life changes and losses, such as the death of a loved one, losses of dreams or unexpected disability situations. In this article, grief reactions of mothers who learns that she has a mentally retarded child during birth was investigated. It was determined that the five stages of grief proposed by Elisabeth KüblerRoss (denial, anger, bargaining, depression and acceptance) are experienced by mothers. Also it was observed that, mothers need grief counseling in this process