Diarrheal diseases remain important causes of childhood morbidity and mortality in developing countries. Most of the diarrheal diseases in developing countries are symptomatic. For this reason, this study was designed to find out the specific symptoms, treatment pattern and recovery time of the affected children, infant and neonate. A retrospective study was performed on 50 patients suffering from diarrhea. The study period was from January, 2009 - June, 2009 at Institute of Child health of Shishu Sasthya Foundation Hospital, Mirpur-2, Dhaka - 1216. The Information of the anthropometric measurements, type of feeding, duration of diarrhea, number of stools during the last 24 hours, dehydration status etc. were collected from the hospital records. The oral rehydration solution (ORS), antibiotic therapy or antidiarrhoeal drugs were given to the patients having age range <1 month to > 24 months also considered. It was found that among 50 patients, 80% infant was affected by diarrhea. Common symptoms for infants were loose watery stool (84.38%), vomiting (80%), fever (87.5%) and loose motion (81.82%). Most of the infant about 87.5% received antibiotic therapy. The treatment provided other than antibiotic therapy was koloride, NPO (Nothing per oral), ORS (Oral Rehydration Solution) etc. After taking the antibiotic therapies with other treatment, 85% infants and 100% neonates were recovered within 1-3 days. This scenario gives a partial feature of diarrhea disease in developing country like Bangladesh. But the further study is required to find out the full status of the symptomatic childhood diarrhea disease.