So does early masturation slow height growth?

Precocious puberty. Early sexual maturation/physical development (precocious puberty) often lead to smaller/shorter stature as an adult. The earlier the process start, the more severe it is. Thus, often a child is evaluated regularly during early childhood/adolescent years to check for growth abnormality and institute treatment if needed. So, if u or someone you know may have this, consult doc. Good luck.