my baby is one and half year old but continuously from last 2 month is losing weight 100 200 grams before is increasing suddenly started reducing weight what is the reason I am worried

A. hi dear It is expected that newborns will lose some weight in the first 5-7 days of life. A 5% weight loss is considered normal for a formula-fed newborn. A 7-10% loss is considered normal for breastfed babies. Most babies should regain this lost weight by days 10-14 of life.