Neonatal disorders mean disturbance of normal state of body, organs and abnormal function of a newborn. Obstetricians play a major role to minimise the number of neonatal disorders. Prematurity, respiratory dysfunction, birth trauma, congenital malformations, neonatal infection and haemolytic disorders of the newborn are some examples of neonatal disorders commonly encountered. Preventive obstetrics is most important in reducing these disorders. Regular antenatal check-up, balanced diet, iron and folic acid tablet, avoiding repeated pregnancies are some measures which can prevent prematurity. Any factors which cause maternal hypoxia during pregnancy are responsible for foetal hypoxia. Proper antenatal care and avoidance of narcotic drugs in pregnancy are the pillars to combat respiratory dysfunction. Obstetricians play an important part to minimise birth trauma which is single handedly an important example of neonatal disorders. Proper antenatal care to detect any obstetrical anomaly reduces birth trauma to a large scale. In case of congenital anomalies, genetic counselling and early abortion in gross congenital anomaly are important aspects which can be looked after by the obstetricians. Neonatal infections can be minimised by the obstetricians themselves if they take care of any suspicious vaginal discharge in antenatal period. Dirty dressings are to be avoided in delivery time. Proper immunisation to the mother and also counselling of HIV transmission are also important. Haemolytic diseases of the newborn can be confronted by proper Rh and ABO blood groupings in antenatal period and proper intervention at the time of delivery.