It is normal for children to have their menstruation at the age of 13, which indicates that they have entered puberty and their secondary sexual characteristics are gradually developing, this situation does not affect the child’s growth and can grow 4-8cm, but height is mainly affected by genetic factors and acquired factors, as long as the child’s epiphysis is not closed, it will continue to grow and puberty growth and development is faster. Be sure to supplement your child’s nutrition in a timely manner, give your child more food rich in high-quality protein, eat more fresh vegetables and fruits, and replenish calcium in a timely manner to avoid affecting growth and development.