Discuss whether it’s normal for a four-month-old girl to not roll over and offer improvement methods.

Is it normal for newborns to sleep less than 16 hours at 15 days old, and what is the relationship between sleep and intellectual development?

Experts Explain the Potential Risks of Babies Sleeping on Their Sides and Improvement Methods

Understand if it is too early for an eight-and-a-half-month-old baby to start learning to walk, and the potential impact on eye development and leg health.

An 8-month-old baby often stands on one leg while being held, which may be related to their young age and unstable balance. It is recommended to avoid letting the child stand and to check for trace elements to prevent deficiencies.

Explore the possible reasons why a 9-month-old baby may not be able to walk, and how to improve the situation through calcium supplementation and proper nasal care.

Walking on the toes in infants may be due to a calcium deficiency. It is recommended to improve the condition through calcium supplementation and adequate sun exposure.

Possible reasons and examination suggestions for a 13-month-old baby walking with bent legs.

My seven-month-old son hasn’t learned to roll over yet, prefers to lie flat, and had brain oxygen deficiency two days after birth. How should I train him to roll over?

Understanding the normal development standards for a 21-month-old baby in terms of motor skills, language development, and social adaptation.