I fell down from a one story building and rolled down another story on cement steps at age 7. I am 55 years old now and have a normal growth but since childhood had sexual problems. I have very small testicles and even now my Hormone level is 224. I have read that childhood head injury can cause problems with initiating & controlling sexual maturation during childhood puberty and later in life. It can also cause deficiency of Gonadotropins (Follicle stimulating hormone and Luteinizing hormone).