Child sexual abuse is a serious worldwide problem that affects lives of children and their social environment. Although there is greater interest in this area, it is still receiving little attention. Experts play an important role in this period of the child’s life, therefore the aim of this research is to gain insight into the Social Welfare centre experts’ reactions to child sexual abuse. The study included 8 participants from Varaždin County of the Republic of Croatia, 5 social workers, 2 psychologists and 1 lawyer. The data were collected through semi-structured interview. Considering experts’ reactions to children, the results show that they respond on a behavioral and emotional level. Reactions to parents were also examined and participants expressed their reactions to parents who did not commit sexual abuse and to those who committed sexual abuse. Firstly, considering reactions to parents who did not commit sexual abuse, on the one hand, experts responded with anger and judgement, ambivalence and distrust, and on the other hand, they supported them and perceive them as partners. Secondly, to those who committed sexual abuse experts reacted by maintaining awareness of the importance of self control, but also anger, distancing themselves from the perpetrators and rationalizing their actions. Furthermore, the challenges and available support in the work of experts were examined. The biggest challenges that professionals face are interviewing children, lack of good quality cooperation with other professionals, lack of resources, acquired knowledge and experience and inadequacy of necessary professional standards. In contrast, the greatest help in experts’ work includes support of professionals within the Social Welfare centre and investment in professional growth and development.