Answer:

Young children often wake up and cry multiple times during the night. This can be a normal physiological response because infants have not yet established a stable sleep-wake rhythm, their stomachs are small requiring frequent feeds, or they are experiencing discomfort due to basic needs.

For a 3-month-old, hunger or insufficient feeding is one of the common reasons for night waking. After a full feed, burping, and a diaper change, the baby may fall back asleep. Wet diapers, tight clothing, a room that is too hot or cold, bright lights, and noise can also make the baby uncomfortable and prone to waking. Parents should maintain a quiet sleep environment with soft lighting, an appropriate room temperature, change diapers when necessary, and dress the child in light, comfortable clothing.

Some babies cry due to gas, digestive discomfort, or gastroesophageal reflux. They may spit up milk, arch their back, or show signs of discomfort after feeding. Other medical conditions such as vitamin D deficiency, iron deficiency, rickets, neurological issues, digestive disorders, otitis media, pharyngitis, viral infections, or urinary tract infections can also cause pain or discomfort, which may become more pronounced at night.

Master, Doctor, Second Degree Specialist Vu Dinh Phuong An examines a child at Tam Anh General Clinic District 7. Illustration photo: Trung Vu

Beyond these causes, some babies may cry due to a cow's milk protein allergy or intolerance to certain milk components. Symptoms can include frequent crying after feeding, accompanied by gas, vomiting, diarrhea, abnormal stools, or a rash. If these symptoms persist or the child experiences slow weight gain, you should take your baby for a medical examination to identify the underlying cause.

If a baby feeds well, gains weight steadily, is alert when awake, shows no unusual symptoms, and can fall back asleep after basic needs are met (such as feeding, diaper change, or burping), it is likely a normal physiological condition. In such cases, parents can continue to monitor the child, maintain a consistent daily routine, and create a stable sleep environment.

If the crying is prolonged or if unusual signs appear, a doctor will conduct an examination, assessing the child's growth, nutrition, sleep patterns, and any accompanying symptoms to determine the cause. Depending on the specific situation, the child may be prescribed additional tests or necessary investigations before a treatment plan is recommended.

Regular health check-ups also help parents monitor their child's growth and development, enabling early detection of any abnormalities related to nutrition, motor skills, neurological development, and other potential health conditions.

At Tam Anh General Hospital, children receive examinations tailored to their age groups, including a comprehensive assessment of their growth, nutrition, and overall development. This includes screening for congenital abnormalities, and evaluating nutritional, motor, and neurological development. Should any unusual signs be present, doctors may order tests, imaging, or appropriate investigations to pinpoint the cause, and then provide guidance on monitoring and suitable treatment.

Master, Doctor, Second Degree Specialist Vu Dinh Phuong An,

Pediatrics Unit, Tam Anh General Clinic District 7