Hi,Puffy they tell me it's not ?? BUT i have IBS so do my brother and sister and my mother has crohns. I still think that although they say crohns can not be passed on , that there must be some weak gentic factor that has gone haywire. And i also know that they say IBS is alot to do with stress ( and yes i did have a stressful childhood ) but for it to effect the whole of my family , and not just my brother and sister now my neice who is 12 and my son who is 9 are showing signs of IBS. My only hope is through the generations it get weeker and weeker , as mother mum as crohns i have IBS and now my children i hope only have a weak gut..I say yes but they keep telling me NO . Heidi