The specific objectives addressed in this paper are to examine the types, and the causes of prescribing errors among the doctors, nurses and pharmacists at Ibb city hospitals in Yemen. The data were drawn by using a questionnaire, a sample random sampling procedures to select 388(doctors, nurses and pharmacists) from the private and the governmental hospitals at Ibb city in Yemen, using a descriptive analysis. The researcher found that the participants agree about the unintentional mistakes as a first common types of the prescribing errors with the overall µ= 3.81, intentional violation mistakes as second types of the prescribing errors with the overall µ= 3.75 and the intentional mistakes as a third common types of the prescribing errors with the overall µ= 3.68. The participants agree about the staff as the first common causes with the overall µ= 3.93, lack of knowledge and environmental condition as the second common causes with the overall µ= 3.90, lack of patient necessary information and lack of system and supervision are the third common causes with the overall µ= 3.89, prescriber lapse and slip as the fourth common causes with the overall µ=3.87. These finding are the first to document the types and the causes of medication prescribing errors in Yemen.