Brachial plexus palsy is the condition that is most commonly resulting from the mechanical damage occurring during childbirth. This condition in a newborn is not a common occurrence, but can lead to permanent disability. Plexus brachialis forms the roots of C5-Th1, and the damage is classified by the involvement of the brain nerve, which also depends on the clinical picture. The condition can be categorised into four types: Erb-Duchenne paresis or damage to the roots C5, C6, medium or extended paresis or root damage C7, Klumpke paresis or damage to the lower roots C8 and Th1 and mixed type lesions or damage to C5, C6, C7, C8 and Th1 roots. Due to the damage of the mentioned roots, this condition is associated with the inability to perform abduction and external rotation, and the internal rotators are preserved so the hand is in the inner rotation. Also, due to paralysis, the elbow is in a position of extension, and the forearm is in the pronation, while the fingers movements are preserved. The habilitation procedure is carried out after an objective evaluation of the condition, and created individual plan and program with the help of all the members of the habilitation team. Physiotherapeutic intervention should be started as early as possible to prevent numerous consequences such as contractures of the affected joints and the development of abnormal movement patterns. In the first days the therapy is focused on the protection of joints and hands from further injuries. Positioning and proper baby handling are very important because they ensure that the affected extremity is always supported and protected. Intensive physiotherapy is necessary, with special emphasis in the further process of habilitation being placed on the facilitation of normal movement, the preservation of the normal range of movement in the joints and the strengthening of the affected musculature. Physiotherapeutic interventions also include other procedures such as sensory awareness, electrotherapy, hydrotherapy, work therapy and kinesitherapy, including passive and active therapeutic forms, and some physiotherapeutic concepts such as Vojta, Bobath and PNF. Pysiotherapist, as a member of the team in conducting the whole procedure- evaluates the process, sets physiotherapeutic diagnosis and performs intervention at the functional restriction and disability level, and educates the child's parents. Therapy is performed as long as functional disability requires it, and if such a conservative treatment does not achieve the desired results at a given time, neurosurgical treatment will be done.