Abstract
Type 1 diabetes mellitus is very rare in infants and toddlers and is usually associated with high mortality when complicated with diabetic ketoacidosis (DKA). Toddlers in DKA are often missed in our typical African setting where there is low index of suspicion. Usually, the classical symptoms are not usually at the forefront and many infants and toddlers who develop DKA are mistreated for infections. The case of a 13-months old toddler with new-onset type 1 diabetes mellitus, complicated with DKA at diagnosis is reported in view of its rarity and elevated mortality even when diagnosed in our African setting. She was subsequently treated with intravenous insulin and was passed over to subcutaneous insulin after the eradication of ketones in urine. She continues follow-up at the out-patient children diabetes clinic at the Bafoussam Regional Hospital.