My husband was diagnosed June 06, and since he was adopted as an infant we don't know about history, but two of our four children have had bowel "issues". This makes me concerned for their future.
We are in the process of trying to switch the family over to SCDiet, and maybe that will help put off what may come for a little while longer.
I have had CD for 22 years and my niece was also diagnosed at 12! Yuk- poor thing. she was such a sick little girl. They found hers because her knees were so swollen. No pain or anything. She is now on Remicade and doing really well. I also know of a couple distant relatives who also had stomach problems but never diagnosed with CD, but as was mentioned , back then they figured it was so many other ailments.
I have CD, My Mom had CD, her cousin has CD, the cousin's son has UC and their Uncle had what was then called Tuberculosis of the intestines, this was before Crohn's was discovered. Then about 3 years ago, My Dad was diagnosed with AS, so basically I hit the genetic jackpot as far as autoimmune diseases go. I'm watching my two daughters like a hawk.
And my older daughter was serious with one guy who was just diagnosed with IBD, at this point the doctor isn't sure if its UC or CD. I'm still hoping they don't get back together. He's a sweetheart and treated her like a queen, but oh lord, the genetic pool those kids would be swimming in!!!