Dear Doctor. My baby is 8 months old and is eating, sleeping, and gaining weight well. However, she has not yet started teething, even though other babies usually start teething at 5 or 6 months old.

Pneumonia is caused by the proliferation of viruses that create infections in the lungs. When newborns have pneumonia that is not detected early and treated promptly, it can lead to dangerous complications, even resulting in death.

Children at risk of vitamin D deficiency due to suboptimal cutaneous synthesis of vitamin D from sunlight exposure or insufficient dietary intake should receive vitamin D supplementation as a preventive measure. Parents are encouraged to consult the following article for guidance on appropriate vitamin D supplementation in children

Intestinal worm infections are currently common in children. The consequences of these infections include poor appetite, slow growth, malnutrition, anemia, and even death due to complications. Abdominal pain caused by worms is a typical sign that helps identify and effectively treat this condition.

Preterm infants require careful monitoring of their weight. Normally, the weight gain standard is at least 5 grams per day for extremely preterm infants, or 20 grams per day for very preterm infants.

In newborns, stretching, arching, and startling during sleep in the first few months of life are entirely normal physiological phenomena. They usually last for only a few seconds, then stop immediately. Therefore, parents should not be overly worried about these behaviors.

Sunbathing helps newborns absorb sunlight, produce enough vitamin D for the body, reduce rickets, and treat neonatal jaundice. 7 to 10 days after birth is the ideal time for mothers to gradually introduce their babies to sunlight.

In addition to tips for properly sunbathing newborns, many parents wonder about the appropriate times for sunbathing newborns. It is generally recommended to sunbathe babies before 9 a.m. and after 4 p.m.