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In order to determine the relationship between breast feeding and growth pattern, the information about anthropometric measurement and feeding pattern in first 4-6 months of life and after that of 324 hospitalized children were recorded and analyzed results are as follow: 67.3% were exclusively breast-fed, 61.3% were breast-fed accompanied with non-maternal milk (Cow milk, formula, pasteurized cow milk) and 11.4% were fed with non-maternal milk only. 44.8% of the total patients had weight for the age under 5th percentile, 53.7% had height for the under 5th percentile and 26.9% had head circumference (HC) for age under 5th percentile of NCHS standard. 77.8% of infants under 6 months of age who had weight for age under 5th percentile never have been fed with breast milk. In the other hand 72.2% of patients with weight for age between 5-100th percentile fed exclusively with breast milk in first 4-6 months of life (P<0.03). 63.2% of infants aged 6-12 months with weight for age under 5th percentile have never been fed with breast milk in first 4-6 months or did not commence supplementary food on time. This study suggest that exclusively breast-feeding in first 4-6 months of life and continuation of breast milk beside supplementary food on proper time can provide better growth potential relative to other options.