A newborn hospitalized in neonatology suffers a lot of painful and fully perceived procedures. However this pain is not enough taken into consideration. There are various reasons for this failure. The objective of our study was to analyze the perception of 3 groups of participants (parents, nurses and doctors) about newborns’ pain. We wanted to compare these perceptions with pain scales (EDIN and BBdol scale) and to study their connection with newborn illness severity and mortality risk scores (SNAP and CRIB). Population and method. -We have led a prospective study involving 80 newborns. Questionnaires assessing, with the help of a visual analogic scale, the pains’ perception and the efficiency of the treatment of this pain were given to the 3 groups of participants. Results. -Parents assessed that their newborn feels an important pain (median: 5/10), that was not correlated with pain scales. Nurses and doctors assessed a lower level of pain (median: 2/10), greatly correlated with the pain scales. Parents assessed that the treatment of pain was better when the newborn was severily ill. The nurses, and even more the doctors, assessed the opposite effect. The nurses appeared to hold an intermediate position between parents and doctors. Nurses underlined moreover some lack of communication of the doctors about the newborns’ pain. This communication problem is a major hindrance to the adequate treatment of pain. A newborn hospitalized in neonatology suffers a lot of painful and fully perceived procedures. However this pain is not enough or taken into consideration. There are various reasons for this failure. The objective of our study was to analyze the perception of 3 groups of participants (parents , nurses and doctors) about newborns’ pain. We wanted to compare these perceptions with pain scales (EDIN and BB scale scale) and to study their connection with newborn illness severity and mortality risk scores (SNAP and CRIB). Population and method. -We Have a prospective study involving 80 newborns. Questionnaires assessing, with the help of a visual analogic scale, the pains’ perception and the efficiency of the treatment of this pain were given to the 3 groups of participants. newborn feels an important pain (median: 5/10), that was not correlated with pain scales. Nurses and doctors assessed a lower level of pain (median: 2/10), greatly correlated with the pain scales. Parents assessed that the treatment of pain was better when the newborn was severily ill. The nurses, and even more the doctors, assessed the opposite effect. The nurses appeared to hold an intermediate position between parents and doctors. lack of communication of the doctors about the newborns’ pain. This communication problem is a major hindrance to the adequate treatment of pain.