Typically, babies start to sprout their first tooth by the 6th month, and by the end of the first year, they usually have around 6 teeth. By the age of 2, they generally have a full set of 20 teeth, evenly distributed between the upper and lower jaws. However, the teething sequence varies for each child, and in some cases, a 9-month-old baby might still have no teeth.

Hand, foot, and mouth disease (HFMD) is a highly contagious infectious disease commonly seen in children. Although it usually resolves on its own within 5–7 days, improper management can lead to severe complications, including death.

Many babies prefer sleeping on their sides, while others are placed on their backs or stomachs. Some believe that letting a newborn sleep on their side is the best option to ensure a safe and comfortable sleep. However, there is no universally optimal sleeping position that applies to all newborns.

All parents are understandably anxious when their children exhibit rapid breathing, or experience choking or difficulty breathing. At night, as you listen to your infant's respiration, observe their facial expressions to identify any unusual signs and assess both the respiratory rate and other health conditions that may require timely intervention.

Intussusception is a common surgical condition in young children, especially breastfed infants. It occurs when one segment of the intestine slides into an adjacent segment, leading to intestinal obstruction.

The scrotum is a pouch that contains two testicles. Testicular swelling is a common issue in newborns or male children. Swollen testicles can have various causes and are usually classified into two types: non-painful and painful swelling.

A 12-year-old girl may have already entered puberty, experiencing rapid physical and emotional changes. Therefore, families must understand their child's concerns to provide the necessary guidance.

At this stage, you can start helping your baby recognize time and develop a nighttime sleep routine. Repeating activities that encourage sleep each night—such as bathing your baby, reading a story, feeding, or singing lullabies—can make it easier for your baby to fall asleep. Establishing this habit takes time and effort, so it is important to share this responsibility with your partner or caregiver to ensure consistency and support.