If your son has the salt-wasting type of CAH, then your daughter would have the same type (it has to do with the specific type of defective genes that you and your husband have). Obviously, she could not have survived to 18 months without treatment if she has the salt-wasting form of CAH. There was some discussion about this a while back, and it sounds like - although almost unheard of - it is not impossible that other children could have a different form of CAH (a VERY, VERY small chance); geneticists might disagree. You can probably rest easy about your daughter, Jennifer, but if you are really concerned, all it takes is a blood test to be sure. I know that this first while is very stressful with a new CAH baby; you are likely wondering if your son will live a normal life, and be able to do things that other children can do. Will he reach adulthood? Can he be a Dad someday?? Can you handle all of this?? Yes! Yes! Yes! You have found an invaluable source of information and support here at this message board, and you can handle it!! God's blessings to you and your family!