How Water Can Be Dangerous or Fatal for Babies

Water is fundamental to life, yet for infants and babies, it presents unique and serious hazards that caregivers must navigate. Infants possess physiological vulnerabilities that make them susceptible to water-related dangers in ways older children and adults are not. Safety requires vigilance across multiple domains, including the physical environment, temperature control, and internal consumption. These areas all pose distinct risks to an infant’s delicate system.

Hazards of Submersion and Drowning

Drowning is the leading cause of unintentional death for children between one and four years old, and it can occur with speed and silence. Infants and toddlers lack the muscle control and cognitive awareness to lift their heads or call out when their airways are compromised. A child can become submerged in the time it takes an adult to cross a room for a towel.

It requires surprisingly little water to create a serious hazard for a baby, sometimes as little as one to two inches. Common household items like bathtubs, toilets, five-gallon buckets, and small wading pools can hold enough water to lead to a drowning incident. Since a baby’s head is the heaviest part of their body, they can easily fall headfirst into a container and lack the strength to right themselves.

Constant, direct “touch supervision” is the most effective preventative measure. This means a caregiver must be within arm’s reach of the child at all times when they are near water. Drowning is often a silent event, as the victim is usually unable to shout or splash, sinking quickly without making noise. A lapse in supervision is a major factor in bathtub drownings, which account for a significant number of fatal incidents for children under one year of age.

After any water struggle or near-drowning incident, immediate medical attention is necessary, even if the baby appears fine. This is due to the potential for delayed complications, sometimes referred to as “dry drowning” or “secondary drowning.” Symptoms like persistent coughing, difficulty breathing, lethargy, or behavioral changes in the 24 hours following a water incident warrant an immediate trip to the emergency room.

Risks Associated with Water Temperature

Infants are vulnerable to extremes in water temperature because their bodies are less capable of regulating core temperature than those of adults. The risk spans from dangerously hot water causing burns to overly cool water leading to hypothermia. Scalding from tap water is a significant concern because a baby’s skin is much thinner and more sensitive than an adult’s.

Water heated to 140°F (60°C) can cause a third-degree burn in as little as six seconds. To prevent these rapid scald injuries, the U.S. Consumer Product Safety Commission urges households to set their water heater thermostats no higher than 120°F (49°C). At this maximum recommended temperature, it takes several minutes of exposure to cause a severe burn, allowing more time for a reaction.

Conversely, infants can quickly lose body heat in water that is too cool, risking hypothermia. Hypothermia occurs when the core body temperature drops below 95°F (35°C). A baby’s large surface area relative to their weight means heat loss happens rapidly, making proper bath water temperature, ideally no hotter than 100°F (38°C), necessary.

Signs of Hypothermia

Signs of hypothermia in a baby include:

  • Having cold, pale, or bright red skin.
  • Being unusually quiet and sleepy.
  • Having low energy.
  • A refusal to feed.

Dangers of Water Consumption and Contamination

Internal water hazards for babies involve both the amount and the quality of the water consumed. Infants under six months old should not be given plain water because their underdeveloped kidneys cannot process excess fluid. Giving a young baby too much water can lead to water intoxication, also known as hyponatremia.

In hyponatremia, the excess water dilutes the concentration of sodium in the bloodstream, necessary for proper cell function. This dilution causes cells, especially brain cells, to swell. Symptoms of water intoxication can include irritability, drowsiness, facial puffiness, low body temperature, and in severe cases, seizures and permanent brain damage.

A common cause of this sodium imbalance is the improper preparation of infant formula. Diluting formula with extra water reduces the necessary nutrients and increases the risk of water intoxication. Formula must be mixed precisely according to the manufacturer’s instructions to ensure the baby receives the correct balance of fluids, calories, vitamins, and minerals.

The quality of water used for formula preparation is also a concern. Using water from an unsterile source, such as untreated well water, can introduce contaminants like bacteria or high levels of nitrates. If there are public health advisories about tap water or if well water quality is questionable, boiling the water first or using sterile water is recommended to mitigate the risk of contamination.