Cute baby feet.

The Dehydrated Baby and Breastfeeding - The Signs to Look Out For

Low Milk Supply Feb 1, 2021

Is Your Baby Dehydrated?

Babies are incredibly resilient, but at the same time, they are so small that physiological changes can occur very quickly.

Babies have a high metabolic rate and a relatively small amount of bodily fluids. For these reasons, dehydration in infants is much more common than in adults. Infant dehydration can be dangerous if left unchecked, so be on the lookout for the warning signs of baby dehydration.

baby's face, cute baby, constipated baby
Baby with his hand over his mouth.

Signs of Dehydration in Babies

Some symptoms of dehydration in babies are relatively easy to pick up, but by then, it may be pretty serious. Often, dehydration in a baby accompanies a viral or bacterial infection, which increases temperature and, thereby, fluid loss.

Dehydration in a baby may be accompanied by the following:

  • Sunken eyes.
  • Sunken fontanel.
  • A decrease in the number of wet nappies.
  • Unusual sleepiness.
  • Dry mouth.
  • Dark urine.
  • Dry lips and skin.
  • Rapid breathing.

Causes of Dehydration

Dehydration causes include Diarrhea, Constipation, Vomiting, Lack of fluids, Excessive heat, Fever, Refusal to drink, sore throat, ear infection, and such.

Is Pedialyte safe while breastfeeding?

Babies and dehydration ~ When to Seek Help.

Call the doctor if your child refuses to feed, seems lethargic, and has not had a wet nappy for several hours. If she cries without tears and her skin feels cold and damp, it is a good idea to seek medical attention. A skin pinch can also tell you that your baby is dehydrated. If the skin does not return to normal immediately after a gentle pinch, this is a sign of a dehydrated baby.

Dehydration in a baby can be prevented by always ensuring an adequate fluid intake. If your baby is breastfed, it is unlikely that she will become dehydrated unless she has a fever or illness.

By Gizelle Bichard


Tracy Behr

Mom of two, breastfeeding helper, and lover of all things natural! Studying a breastfeeding counselor course via Childbirth int. & plant-based nutrition via the Nutrition Inst.

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