Do Newborns Really Need Water? Infant Hydration

Do newborns need to drink water?

Dr.
Zhao: Do newborns not need to drink water? My newborn was born on October 23, 2002, and is still hospitalized.
The doctor said he had 6-12 bowel movements today, and they were small and hard.
He is drinking Meiji formula, 65cc every three hours.
I asked the doctor why he isn't given water, and the doctor said newborns do not need to drink water.
However, my newborn is constipated.
Why is water not necessary? Confused second-time mom.

cloudia, 30~39 year old female. Ask Date: 2002/11/04

Dr. Zhao Yongkang reply Pediatrics

Dear Ms.
Cloudia,
1.
If a child’s milk intake is normal, their hydration levels will also be adequate, as milk contains about 80% water.
Therefore, generally, children with a normal diet do not need additional water intake.
2.
Your child, born on 91-10-23, is still hospitalized.
I am unsure if there are other issues or if they are simply staying in the hospital for daycare purposes, as typically, children are discharged within five days.
3.
Regarding your child's constipation, in addition to assessing the hardness of the stool, it is important to observe if the child is experiencing excessive crying or a decrease in appetite, as these may require special attention, such as administering a small amount of glucose water.
However, it is essential to have a physician conduct a thorough examination and assessment.
Thank you for your letter.
Wishing you peace and health,
Dr.
Zhao Yongkang
Chief of Pediatrics
Hsinchu Hospital, Department of Health

Reply Date: 2002/11/04

More Info

When it comes to the hydration needs of newborns, it's essential to understand that their primary source of hydration comes from breast milk or formula. For the first six months of life, infants typically do not require additional water, as both breast milk and formula contain a significant amount of water—approximately 80%. This is sufficient to meet their hydration needs, provided they are feeding adequately and producing a normal amount of urine.

In the case of your newborn, who is experiencing constipation and has been advised against water intake, it's crucial to recognize that the infant's digestive system is still maturing. Newborns can have varying bowel habits, and while some may experience hard stools, this does not necessarily indicate a need for water. Instead, it may be more beneficial to assess the overall feeding routine and ensure that the baby is receiving enough milk. If the baby is feeding well and gaining weight appropriately, the hydration from milk is likely sufficient.

The concern about constipation in newborns can often be addressed through dietary adjustments rather than introducing water. If the baby is formula-fed, consider discussing with your pediatrician whether a different formula might be more suitable. For breastfed infants, constipation can sometimes be alleviated by ensuring the mother is well-hydrated and consuming a balanced diet.

It's also important to monitor the baby's urine output. A well-hydrated infant typically has 6-8 wet diapers a day, and the urine should be light in color. If the baby is producing fewer wet diapers or if the urine is dark and concentrated, this could indicate dehydration, and it may be necessary to consult a healthcare provider.

For infants under six months, introducing water can pose risks, including water intoxication, which can lead to electrolyte imbalances and stress on the immature kidneys. Therefore, unless specifically advised by a healthcare professional, it is generally recommended to avoid giving water to newborns.

Once the baby reaches six months of age, their kidneys are more developed, and they can begin to have small amounts of water. At this stage, introducing water can help with hydration, especially as solid foods are introduced into their diet. However, even then, the primary source of hydration should still be breast milk or formula.

In summary, newborns do not need additional water as long as they are feeding well and producing adequate urine. If constipation persists or if there are concerns about hydration, it is essential to consult with a pediatrician for tailored advice and potential dietary adjustments. Always prioritize the guidance of healthcare professionals when it comes to the health and well-being of your infant.

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