This was prospective study conducted in sohag university hospital ( obstetric outpatient clinic, chest outpatient clinic and emergency department ).This study aimed to detect the effect of baseline asthma severity on the course of asthma during pregnancy and its effect on the pregnancy and perinatal outcome in the setting of advancements in the management and pharmacotherapy of asthma compared with that previously
bronchial asthma (BA) may affect pregnancy and this affection may increase with increasing asthma severity. This study was designed to detect the effect of asthma severity on the course of asthma during pregnancy and its effect on the pregnancy and perinatal outcome