Objectives: This case-control study was carried out to evaluate the effects of infant feeding pattern on hospital admission due to infection. Patients and Methods: The study has included 498 infants (320 males and 178 females) who attended primary health centers for routine check up and vaccination, and 250 infants admitted to Basrah Maternity and children Hospital (164 males and 86 females), from the first of March 2008 till the end of June 2008, their ages ranged from 1–12 months. Selected socio-demographic variables were evaluated in addition to child birth variables, feeding pattern, cause of admission, duration of hospitalization and outcome. Results: The study revealed a significantly higher percentage of admissions due to diarrhea and respiratory tract infection among infants peon bottle feeding (23.8%, 15.6%) and partial breast feeding (16.4%, 11.6%), compared to those on exclusive (2% and 1.2%) and predominant breast feeding (11.2% and 10%), P value