Question
My child was speaking fluently at 1 year old, but by 2 years, they have difficulty speaking, struggle to articulate words, and there is a regression in intelligence. What are the main causes of developmental regression in infants?
Answer
Based on the situation you described, boys should show signs of secondary sexual characteristics before the age of 9, and girls before 8. It should be considered that there might be precocious puberty. The main manifestation of precocious puberty is the appearance of secondary sexual characteristics, such as pubic hair growth, breast development, and a Adam’s apple in boys. During the period of adolescent development, there is an accelerated growth in height for this child, which requires balanced diet and proper nutrition. It is recommended to check for the levels of sex hormones to clarify the situation.