Hi doctor, My son is 5 months old he has loose motions problem every second day his pediatric advise stool routine test. The test result is mucous-present parasites not detected, occult blood-trace, starch granules and fat globules present, pus cells-40-50embedded in mucous n rest everything absent. My pediac said its bacterial infection n no need of stool culture test. N to start with antibiotic. please advise should I start antibiotic or go for stool culture.