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You may be seeing new sides to your baby's behaviour at 4 months. Your baby may have a range of emotions, including anger, joy, fear, and surprise. Your baby may be much more social and may laugh and smile at other people.
At this age, your baby may be ready to roll over and hold on to toys. They may coo, smile, laugh, and squeal. By the third or fourth month, many babies can sleep up to 7 or 8 hours during the night and develop set nap times.
Follow-up care is a key part of your child's treatment and safety. Be sure to make and go to all appointments, and call your doctor or nurse advice line (811 in most provinces and territories) if your child is having problems. It's also a good idea to know your child's test results and keep a list of the medicines your child takes.
Watch closely for changes in your child's health, and be sure to contact your doctor or nurse advice line if:
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Current as of: September 20, 2021
Author: Healthwise Staff
Medical Review:Susan C. Kim MD - Pediatrics & John Pope MD - Pediatrics & Kathleen Romito MD - Family Medicine
Care instructions adapted under license by your healthcare professional. If you have questions about a medical condition or this instruction, always ask your healthcare professional. Healthwise, Incorporated disclaims any warranty or liability for your use of this information.
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