Medical Conditions

Swimmer's Ear in Babies

The short answer

Swimmer's ear (otitis externa) is an infection of the outer ear canal, different from the middle ear infections that are more common in babies. It is caused by moisture trapped in the ear canal creating an environment for bacterial growth. While more common in older children and adults, babies and toddlers can develop it after baths, swimming, or from excessive ear cleaning. The hallmark sign is pain when the outer ear is touched or pulled. Treatment is typically antibiotic ear drops.

By Age

What to expect by age

Swimmer's ear is uncommon at this age since very young babies are not exposed to pools or prolonged water in the ears. However, if your newborn develops redness, swelling, or discharge from the ear canal, have your pediatrician evaluate - it could be a skin infection in the ear canal or another condition. Be gentle during baths and avoid inserting anything (including cotton swabs) into the ear canal.

As babies begin to enjoy bath time and some families introduce swimming, there is a small risk of water becoming trapped in the ear canal. Signs of swimmer's ear at this age include increased fussiness, crying when the outer ear is touched, and redness of the ear canal opening. If you notice your baby becoming upset when you touch or clean around the ear, rather than only during ear pulling, this may point to an outer ear issue rather than a middle ear infection.

Babies who regularly swim or have frequent baths may develop swimmer's ear. The key distinguishing feature from a middle ear infection is pain with movement of the outer ear (pinna) or pressure on the tragus (the small flap in front of the ear canal). Your baby may resist having their ear touched, and you may notice the ear canal looking red or swollen. Antibiotic ear drops are the standard treatment - oral antibiotics are not typically needed for outer ear infections.

Toddlers who swim or play in water frequently are at higher risk. Signs include ear pain (especially when the ear is touched), itching, drainage, and a feeling of fullness. Prevention includes drying ears gently after water exposure and avoiding cotton swabs. If your toddler has ear tubes, water precautions and the use of ear plugs during swimming may be recommended by your ENT to prevent both swimmer's ear and middle ear contamination.

What Should You Do?

When to take action

Probably normal when...
  • Your baby's ears appear slightly red after bath time but there is no pain, discharge, or swelling - mild redness from warm water is normal.
  • Your baby has some water in their ear after a bath that drains on its own - this is normal and does not usually cause infection.
  • Your toddler's ear feels itchy occasionally after swimming but resolves quickly without other symptoms.
  • There is a small amount of earwax visible in the ear canal - this is protective and should not be removed aggressively.
Mention at your next visit when...
  • Your baby cries or pulls away when you touch or gently tug the outer ear - this is the classic sign of swimmer's ear.
  • You notice redness, swelling, or discharge from the ear canal opening.
  • Your toddler has ear pain after swimming that doesn't resolve within a few hours.
Act now when...
  • Your baby has severe ear pain with significant swelling that is closing off the ear canal, fever, or swelling spreading to the face or behind the ear - this could indicate a more serious infection requiring urgent care.
  • Your child with ear tubes develops signs of swimmer's ear along with foul-smelling drainage - prompt evaluation is needed to determine if the middle ear is also involved.

Sources

My Baby's Head Shape Looks Abnormal

Many babies develop temporary head shape irregularities that are completely normal. A cone-shaped head from vaginal delivery reshapes within days. Mild positional flattening (plagiocephaly) from sleeping on the back is very common and usually improves with repositioning and tummy time. However, head shape changes involving ridges, a persistently bulging fontanelle, or rapid head growth changes should be evaluated to rule out craniosynostosis.

Achondroplasia (Dwarfism) in Babies

Achondroplasia is the most common form of short-limbed dwarfism, affecting about 1 in 15,000 to 40,000 births. It is caused by a mutation in the FGFR3 gene and is usually apparent at birth with characteristic features including short limbs, a larger head, and a prominent forehead. Intelligence is normal. With monitoring for specific complications and supportive care, children with achondroplasia lead full, active, and independent lives.

Adenoid Hypertrophy and Breathing

Adenoids are lymphoid tissue located behind the nose that help fight infection in young children. When adenoids become enlarged (adenoid hypertrophy), they can block the nasal airway, causing chronic mouth breathing, snoring, nasal speech, and sleep-disordered breathing. Enlarged adenoids are most common between ages 2-7 and are a leading cause of obstructive sleep apnea in young children. Treatment ranges from watchful waiting and nasal steroids to surgical removal (adenoidectomy) if breathing or sleep is significantly affected.

Air Quality and Baby Health

Babies and young children are more vulnerable to air pollution than adults because they breathe faster, their lungs are still developing, and they spend more time close to the ground where some pollutants concentrate. The EPA recommends keeping babies indoors when the Air Quality Index (AQI) exceeds 100 (orange level). During wildfire smoke events, keep windows closed, use air purifiers with HEPA filters, and monitor your child for coughing, wheezing, or difficulty breathing. Long-term exposure to air pollution can affect lung development.

Altitude Sickness in Babies

Babies and toddlers can experience altitude sickness when traveling above 5,000-8,000 feet (1,500-2,500 meters). Symptoms are harder to recognize in infants because they cannot describe how they feel. Watch for unusual fussiness, poor feeding, disrupted sleep, vomiting, and fast breathing. Gradual ascent is the best prevention. Most pediatricians recommend avoiding sleeping at very high altitudes (above 8,000 feet) with infants when possible, and descending immediately if symptoms appear.

Amblyopia (Lazy Eye) Treatment Timing

Amblyopia (lazy eye) is the most common cause of vision loss in children, affecting 2-3% of the population. It occurs when one eye develops weaker vision because the brain favors the other eye. Early detection and treatment are critical because the visual system is most responsive to treatment during early childhood. Treatment is most effective when started before age 7, though improvement is possible at older ages. Treatment options include patching the stronger eye, atropine eye drops, glasses, or a combination.