Among children under age five, diarrhea is the second leading cause of death. However, exclusive breastfeeding stands out as the single most effective intervention for child survival .So, we conducted this study is to estimate the prevalence of both breastfeeding and diarrhea and to investigate the association between them among children 24 months old and less in Al –Hasa city.

Trained physicians fill a validated questionnaire for a 296 of child/ caregiver pairs, among PHC centers in Al–Hasa, and the result show that 65% of children 24 months old and less were exclusively breastfed, prevalence of breast–feeding among Saudi women in Al–Hasa city reach 50%. Regarding diarrhea, 30% of children had a diarrheal episode in the last two weeks and 70% didn‘t have. The use of formula have significant association with episodes of diarrhea

Children 0–24 months old who were formula fed significantly had a higher risk for diarrhea episodes