When should you call the doctor?

As parents, we all have moments of wondering, “Is this serious enough to call the doctor?” Whether it’s a stubborn fever, a strange rash, or just a gut feeling that something’s not quite right, it’s natural to second-guess ourselves. After all, kids are resilient—and they also catch every bug that goes around!

But knowing when to reach out to your pediatrician can make all the difference in your child’s health and your peace of mind. So let’s walk through some of the key signs that it’s time to pick up the phone and schedule a visit.

Red Flags You Shouldn’t Ignore

Here are some symptoms that warrant a call or visit to your pediatrician:

1. High or Persistent Fever

• Infants under 3 months having rectal fever over 100.4°F (38°C) should be evaluated urgently in an Emergency Room (ER).

• For older children, a fever lasting more than 5 days or one that spikes above 104°F (40°C) is a concern that needs to be evaluated in our office.

2. Trouble Breathing

• If your child is breathing rapidly, wheezing, or using extra muscles to breathe (like flaring nostrils or sucking in at the ribs); go to the ER or call 911.

• Blue lips or fingertips are an emergency—call 911.

3. Signs of Dehydration

• Look for dry mouth, no tears when crying, sunken eyes, or fewer wet diapers than usual.

• Dehydration can happen quickly, especially with vomiting or diarrhea.

4. Unusual Rashes

• A rash that spreads quickly, is painful, or comes with a fever should be checked.

• If the rash doesn’t blanch (fade when pressed), it could be a, sign of something more serious.

5. Changes in Behavior

• Excessive sleepiness, irritability, or inconsolable crying can be signs of illness or pain.

• Trust your instincts—if your child just doesn’t seem like themselves, it’s worth a check-in.

6. Feeding or Digestive Issues

• Refusing to eat or drink, persistent vomiting, or signs of abdominal pain or distension should be evaluated.

• Babies who aren’t gaining weight or are losing interest in feeding need prompt attention.

7. Injuries

• Head injuries, deep cuts, or suspected broken bones should be seen by a doctor.

• Even if your child seems okay after a fall, watch for signs like vomiting, confusion, or sleepiness.

8. Developmental Concerns

• If your child isn’t meeting milestones—like smiling, sitting up, walking, or talking—bring it up with at your next doctor visit.

• Early intervention can make a big difference.

When in Doubt, Reach Out

You know your child better than anyone. If something feels off, don’t hesitate to call. 

Trusted Resources:

• St. Louis Children's Hospital: A Parent's Guide to Calling The Doctor

• Mayo Clinic:  Sick baby? When to seek medical attention