Common Baby Concerns
Our concern guides cover over 2,500 common baby health questions with age-specific information, action tiers (normal, mention at next visit, call now), and source citations from the AAP, CDC, and WHO.
2705+ evidence-based guides for the questions parents search at 2am. Each tells you what's normal, what to watch, and when to call your doctor.
Signs of Bronchiolitis in Babies
Bronchiolitis is a common lower respiratory infection in babies under 2 years, most often caused by RSV. It typically starts like a cold with runny nose and cough, then progresses to wheezing and breathing difficulty over 2-3 days. Most cases are mild and resolve at home within 1-2 weeks, but young infants (under 3 months) and babies born prematurely are at higher risk for severe illness requiring hospitalization.
Bronchiolitis vs Pneumonia
Bronchiolitis and pneumonia are both lower respiratory infections in babies but affect different parts of the lungs. Bronchiolitis inflames the small airways (bronchioles) and is almost always caused by viruses like RSV, primarily affecting babies under 2. Pneumonia infects the air sacs (alveoli) and can be caused by viruses or bacteria. Both can cause coughing, fast breathing, and difficulty breathing, but their treatments differ -- bronchiolitis is managed with supportive care while bacterial pneumonia requires antibiotics.
My Baby Has BPD (Bronchopulmonary Dysplasia) — Chronic Lung Disease
Bronchopulmonary dysplasia (BPD) is a chronic lung condition that primarily affects premature babies who needed oxygen or ventilator support after birth. The immature lungs become inflamed and scarred, leading to ongoing breathing difficulties. BPD ranges from mild (needing oxygen briefly after 36 weeks corrected age) to severe (requiring long-term respiratory support). While BPD is a serious diagnosis, most children's lungs continue to grow and improve over the first 2-3 years of life, and many outgrow their oxygen needs entirely.
My Baby Stopped Breathing and Then Was Fine
A Brief Resolved Unexplained Event (BRUE) is when a baby suddenly stops breathing, changes color, goes limp, or becomes unresponsive for less than a minute and then returns completely to normal. While terrifying to witness, most BRUEs are isolated events with no underlying serious cause. However, any BRUE requires immediate medical evaluation to ensure your baby is safe.
Bug Bite Reactions in Babies
Babies and toddlers often have exaggerated reactions to insect bites, with large areas of redness and swelling that look alarming but are usually a normal immune response called Skeeter syndrome. Young children have not yet developed tolerance to insect saliva, so their reactions tend to be bigger than what adults experience. Most bite reactions resolve on their own within a few days with simple home care.
Button Battery Ingestion: Emergency Guide
Button battery ingestion is a true medical emergency. If you suspect your child has swallowed a button battery, go to the emergency room immediately -- do not wait for symptoms. A button battery lodged in the esophagus can cause severe chemical burns and life-threatening tissue damage within as little as 2 hours. Do not induce vomiting. Give honey (if over 12 months old) every 10 minutes on the way to the hospital, as it may slow tissue damage.
My Baby Has Light Brown Spots
Café-au-lait spots are flat, light brown birthmarks that are very common and usually harmless. One or two spots are present in about 20-30% of all babies. However, having six or more spots larger than 5mm may be a sign of neurofibromatosis, so your pediatrician will monitor the number and size of spots over time.
Caffeine While Breastfeeding
Moderate caffeine intake, generally up to 300 milligrams per day (about two to three cups of coffee), is considered safe while breastfeeding. Only about one percent of the caffeine you consume passes into your breast milk. However, newborns and premature babies metabolize caffeine more slowly, so they may be more sensitive to its effects.
Calcaneovalgus Foot (Foot Bent Up at Birth)
Calcaneovalgus foot is a very common, benign positional foot deformity noticed at birth in which the baby's foot bends upward (dorsiflexed) toward the front of the shin. It is caused by the foot being compressed in this position during pregnancy. The key feature is that the foot is flexible and can be gently moved to a normal position. Almost all cases resolve completely on their own within weeks to months with simple stretching exercises. It is important to distinguish this from vertical talus, a rigid deformity that requires treatment.
Calcium Needs for Toddlers
Calcium is essential for building strong bones and teeth, muscle function, and nerve signaling. Children aged 1-3 years need about 700 mg of calcium per day. Most toddlers get sufficient calcium from 2-3 servings of dairy foods daily (milk, yogurt, cheese). If your toddler cannot or will not consume dairy, calcium-fortified alternatives and other calcium-rich foods can meet their needs.
Baby or Toddler Accidentally Ate a Cannabis Edible - What to Do
If your baby or toddler ate a cannabis/THC edible, call Poison Control (1-800-222-1222) and seek emergency medical care immediately. Cannabis edible ingestion in young children has increased by over 1,300% since 2017, largely because many products look like regular candy or snacks. THC affects small children much more severely than adults and can cause drowsiness, breathing problems, seizures, and loss of consciousness. Do not wait for symptoms to appear - get help right away.
Caput Succedaneum
Caput succedaneum is a diffuse, soft swelling of the scalp that occurs during vaginal delivery due to pressure on the baby's head. It is very common, harmless, and resolves on its own within a few days. The swelling crosses suture lines (unlike cephalohematoma), may be accompanied by bruising, and does not require any treatment.
Cardiomyopathy in Babies
Cardiomyopathy is a disease of the heart muscle that affects how well the heart can pump blood. In babies, the main types are dilated cardiomyopathy (the heart becomes enlarged and weakened), hypertrophic cardiomyopathy (the heart muscle becomes abnormally thick), and restrictive cardiomyopathy (the heart muscle becomes stiff). Signs in infants include rapid breathing, poor feeding, excessive sweating, poor weight gain, and a fast heartbeat. Cardiomyopathy in babies can be inherited, caused by infection, or have no identifiable cause. Early diagnosis and treatment by a pediatric cardiologist are essential.
Caring for Your Baby When You're Sick
You can and should continue caring for your baby when you have a common illness like a cold or flu, with appropriate precautions. The CDC recommends frequent handwashing (at least 20 seconds with soap), wearing a mask when in close contact with your baby, and avoiding coughing or sneezing near the baby's face. Breastfeeding should continue, as the AAP emphasizes that breast milk passes protective antibodies to your baby during maternal illness, actually helping protect them. Most over-the-counter cold medications are compatible with breastfeeding (check with your doctor about specific medications). Ask for help from a partner, family member, or friend to give yourself rest time, as recovery is faster with adequate rest. Very few infections require separation from your baby.
Carnitine Deficiency in Babies
Carnitine deficiency occurs when the body cannot properly transport long-chain fatty acids into mitochondria for energy production. Primary carnitine deficiency (carnitine transporter defect) affects about 1 in 40,000 to 120,000 newborns and is caused by mutations in the SLC22A5 gene. It can cause muscle weakness, heart problems (cardiomyopathy), and life-threatening hypoglycemia, especially during fasting or illness. With early detection through newborn screening and lifelong carnitine supplementation, most children develop normally.
Do I Need to Replace My Baby's Car Seat After a Car Accident?
After a moderate or severe car crash, car seats should always be replaced — even if there is no visible damage. The structural integrity of the car seat may be compromised in ways that are not visible. For minor crashes (all of these must be true: the vehicle was drivable, the door nearest the car seat was undamaged, no one was injured, no airbags deployed, and there is no visible damage to the car seat), NHTSA guidelines say replacement may not be necessary. However, many car seat manufacturers and safety technicians recommend replacement after any crash to be safe. Most insurance policies cover car seat replacement.
Car Sickness in Babies and Toddlers
Motion sickness occurs when the brain receives conflicting signals from the eyes, inner ear, and body about movement. It is uncommon in babies under 2 but becomes more common in children ages 2-12. Rear-facing car seats may contribute because the child cannot see the direction of travel. Strategies include fresh air, avoiding heavy meals before travel, looking out the window (for forward-facing children), and frequent stops. Medication is generally not recommended for very young children without a pediatrician's guidance.
Catching Up on Missed Vaccines
If your baby or toddler has missed one or more vaccine doses, it is almost never too late to catch up. You do not need to restart a vaccine series from the beginning -- your child picks up right where they left off. Your pediatrician can use the CDC catch-up schedule to create a safe, efficient plan to bring your child up to date as quickly as possible.
Catch-Up Growth in Premature Babies
Most premature babies experience "catch-up growth" during the first 2-3 years of life, gradually closing the size gap with full-term peers. Growth is assessed using adjusted (corrected) age - calculated from the due date rather than birth date - until age 2 for weight and age 3 for head circumference. The degree and timing of catch-up growth depends on the gestational age at birth, birth weight, and any complications experienced. Most preemies born after 32 weeks catch up by age 2, while very preterm babies may take longer.
Cellulitis (Skin Infection) in Babies
Cellulitis is a bacterial skin infection that causes an area of skin to become red, swollen, warm, and tender. It can happen when bacteria enter through a break in the skin such as a scratch, insect bite, or eczema patch. Cellulitis requires antibiotic treatment and needs medical attention because it can spread. With prompt treatment, most cases clear up completely within 7-10 days.
Cephalohematoma
Cephalohematoma is a collection of blood between a skull bone and its periosteum (the membrane covering the bone), caused by pressure during delivery. It appears as a firm, raised bump on one side of the baby's head that does not cross suture lines. It is generally harmless and resolves on its own over weeks to months. It does not affect the brain, but the breakdown of blood can contribute to jaundice.
Cervical Cerclage Concerns and Recovery
A cervical cerclage is a stitch placed around the cervix to help keep it closed and prevent preterm birth. It is typically placed between 12-14 weeks (prophylactic) or when cervical shortening is detected (rescue cerclage). Recovery involves some activity restrictions, but many people with cerclages successfully carry to term. The stitch is usually removed at 36-37 weeks.
Signs of Cerebral Palsy in Babies
Cerebral palsy (CP) is the most common motor disability in childhood, affecting about 1 in 345 children. It results from abnormal brain development or damage to the developing brain, most often before or during birth. Early signs include stiffness or floppiness, delayed motor milestones (not sitting by 9 months, not walking by 18 months), favoring one side of the body, and persistent primitive reflexes. Early diagnosis and intervention with physical therapy can significantly improve outcomes and function.
Cervical Insufficiency
Cervical insufficiency (previously called incompetent cervix) occurs when the cervix begins to open too early in pregnancy, often without pain or contractions. It is a leading cause of second-trimester pregnancy loss but is treatable. With early detection through cervical length screening and interventions such as cerclage or progesterone, most women with cervical insufficiency carry their pregnancies to a viable gestational age.
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