When is low weight gain a problem?
Individual babies vary a lot and weight is only one factor in the 'whole picture' of a baby's health and development. Careful assessment of your baby's health is generally recommended if:
- your baby continues to lose weight after the first 10 days of life and does not regain birth weight by 3 weeks
- your baby gains at a rate below about 100 grams a week in the first 3 months
- your baby's weight is less than the 3rd percentile
- your baby's weight drops two percentile lines in 56 days (before the age of 5 months)
- your baby's weight drops two percentile lines in 3 months (after the age of 5 months).
Looking at your undressed baby can also give you an idea. Does your baby look healthy? Does she have a good skin colour and muscle tone? Does she look the right weight for her size? Does she look like her skin 'fits'? Wrinkly, loose skin with not enough fat beneath the skin is a sign that your baby is not gaining enough weight or is losing weight. The 'wasting' of weight loss first appears around a baby's lower abdomen, buttocks and upper thighs, which is why it is important to remove all your baby's clothes when you do this, especially the nappy.
Together with your medical adviser, you can investigate your baby's general health and wellbeing, checking for signs of adequate milk intake and whether your baby is meeting developmental milestones.
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