Bath safety: the 1-inch rule

Why bathtub drownings happen

Bathtub drownings are the second-most common drowning location for kids under 5 (after pools). They almost always happen during a brief lapse in supervision: a parent grabbed a towel from the hall, answered the door, took a quick phone call, started laundry, or got distracted by an older sibling.

The reason "I was only gone 30 seconds" is so common: drowning takes less than that. A baby cannot lift their head if their face is submerged. They do not splash, scream, or alert anyone. They go silent and still. The window from face-in-water to brain damage is short.

The non-negotiable rules

Eyes on, hands on, every second

Under age 6, baths require active supervision. Active means looking at the baby, with at least one hand on or close to them. Not reading on your phone. Not chatting with someone in the next room. Not folding laundry. The bath is not multitasking time.

Never leave, ever

Doorbell, phone, oven timer, older kid yelling about something: scoop the baby out, wrap in a towel, bring with you. If the bath water is going to be empty anyway, drain it first.

Drain immediately after

Don't leave the tub full while you towel and dress the baby. Don't leave it full during a "let's just enjoy the bath time and clean up later" moment. The toddler you trusted to play with bath toys for 30 seconds is the same one who tipped backwards last year.

Water 100 degrees Fahrenheit or below

Test with a thermometer or your elbow (more sensitive than your hand). Set the home water heater to 120 degrees Fahrenheit maximum. Scald injuries from water heaters set to 140-160 are common in kids under 5.

The bath seat trap

Bath seats and bath rings (suction-cup seats that hold a baby upright) have been linked to many drownings. They give a false sense of security. Parents step away "just for a second" because the seat is holding the baby. Then the seat tips, the baby slides under, or the suction cups release.

The AAP and the CPSC do not endorse bath seats as a substitute for supervision. Use one if you want, but treat it as if it does not exist for supervision purposes. Eyes on, hands on, regardless of seat.

The setup that prevents the lapse

The single biggest factor in safe baths is having everything you need within arm's reach before water touches baby:

• Two towels (one to drape on you for after, one for baby).
• Diaper, wipes, clean clothes laid out.
• Lotion or any after-bath products.
• The bath toys you want.
• Phone on do-not-disturb or out of arm's reach but in line of sight if you need it as a timer.
• Pets out of the bathroom.
• Door closed so an older sibling cannot wander in.

If you forgot the towels, scoop the baby out and bring them. Don't reach for them.

The newborn vs. older baby setup

Newborn (0 to 6 months)

• Newborn tub or sink. Bath sling holds head and shoulders.
• 2 to 3 inches of water (just enough to keep the body warm).
• One hand under head/neck at all times.
• Sponge baths only until the umbilical cord stump falls off.
• Bath frequency 2 to 3 times a week. Daily is too much for newborn skin.

Sitting age (6 to 12 months)

• Convert to a baby bathtub or seat insert if needed.
• Water level up to about hip height when seated.
• Non-slip mat in the tub.
• One hand on baby's body, eyes on at all times.
• Daily fine, with limited soap (the more important rule is moisturize after).

Toddler (12 to 36 months)

• Big tub.
• Water level no more than waist-high seated.
• Non-slip mat.
• Soft tap cover on the spout.
• Eyes on at all times. Toddlers are mobile and impulsive.

The tap cover and slip mat

• Tap cover. A soft silicone or rubber cover over the bath spout prevents head injury when toddlers stand up. Cheap and worth it.
• Non-slip mat. A textured mat in the tub prevents slips. Replace when corners curl up or mildew shows.
• Toilet locks. Toddlers can drown in toilets too. Add a toilet-seat lock during the early-walking phase.

What to skip

• Bath additives marketed as "calming oils". Many contain fragrance or essential oils not appropriate for baby skin. Plain water is fine.
• Bubble baths under age 2. Can irritate the urinary tract.
• "Mommy and me" baths if you might fall asleep. Fine when you are alert; not when you're exhausted.
• Inflatable bath rings or rafts for unsupervised swimming. Not a substitute for supervision.

If a near-drowning happens

1. Get the baby out of the water immediately.
2. Check for breathing. If not breathing, start infant CPR and call 911.
3. If breathing but seems off, call 911 anyway. Secondary drowning (delayed lung complications) can occur hours after water inhalation.
4. If alert and breathing normally after, still call the pediatrician for an evaluation.

For the infant CPR steps, see our dedicated guide. The 911 dispatcher will also walk you through it on the phone.

Pool safety carries over

The bath rules become pool rules at higher stakes. Active eyes-on supervision, no distractions, a designated "water watcher" if there's a group. We cover pool safety with toddlers separately.