Understand the normal defecation frequency of a 3-month-old baby and possible causes.

Newborns have not yet fully developed their defecation mechanism, so they cannot defecate on a schedule. Often, stool accumulates, and the rectal wall’s nerves sense swelling pressure, triggering a reflexive bowel movement. This is why some babies defecate only once every few days. Breastfed babies, due to more complete absorption of breast milk, have less stool volume, and some babies may defecate only every few days, not necessarily after each feeding. Therefore, a newborn not having a bowel movement for several days is not necessarily constipation. The method to determine if a newborn is constipated is to observe the stool characteristics; if they are normal, several days without a bowel movement is also considered normal.

A 4-year-old girl has been exhibiting a habit of clapping her legs since she was 3. Should this behavior raise medical concerns?

Explore the language development of a 4.5-year-old child who can only call ‘Dad,’ analyze the possible causes, and suggest medical approaches.

Discuss the situation of a 40-day-old baby not defecating for a week, providing professional advice and possible medical examinations.

A 45-day-old baby sleeping for long periods may be normal, as infants in this age group require 16 to 18 hours of deep sleep daily.

Discuss the phenomenon of a 5-month-old baby clenching and using their fists, as well as possible causes of calcium deficiency and recommended medical measures.

Vomiting after breastfeeding in a 5-month-old baby may be related to dyspepsia, and it is recommended to take traditional Chinese medicine and adjust the diet to improve the condition.

Discuss the phenomenon of slow language development in 5-year-old children, providing professional advice and parental coping strategies.

A 5.5-month-old baby has not yet mastered the skill of reaching out and actively grasping objects with their hands. Is this normal? Additionally, the baby has not yet learned to roll over. Is this also normal?