
What are the symptoms of delayed infant development?
Recently, we have noticed that our baby seems to be developing more slowly than other babies of the same age in certain areas, such as speaking later and being less physically agile. We are concerned whether this might indicate a developmental delay. Therefore, we urgently want to understand the specific symptoms of developmental delay in babies, so that we can identify the issue promptly and take appropriate measures.

Developmental delays in infants may manifest in various symptoms, mainly including delayed physical development, delayed motor development, delayed language and communication development, and delayed social skills development.
1. Delayed physical development: The infant's weight, height, and head circumference measurements may fall below the normal range for their age group, with a significant gap. This may be caused by inadequate nutrition, chronic illness, or other growth and developmental disorders.
2. Delayed motor development: The infant may develop motor coordination skills and gross motor skills (such as rolling over, sitting up, walking) later than peers. For example, being unable to hold up the head steadily at four months, failing to roll over or sit independently at eight months, or not walking by eighteen months.
3. Delayed language and communication development: The infant may experience difficulties in language comprehension and expression. For example, not saying simple words by one year of age, having a vocabulary of fewer than 50 words before two years of age, or being unable to form simple sentences by three years of age.
4. Delayed social skills development: The infant may encounter difficulties in forming interpersonal relationships, understanding social rules, or expressing emotions, such as avoiding eye contact with others or showing indifference to the surrounding environment.
If you notice any of the above symptoms in your infant, please seek medical attention promptly for evaluation and diagnosis by a qualified physician. Early detection and early intervention are crucial for the infant's healthy growth and development.