I was just reading through this thread and thought that I would post with some relatively happy news to give those with balanced translocations hope.
I just discovered that I have a balanced recipricol translocation of 2 and 7. I have no learning problems or apparent physical abnormalities. I have been pregnant 3 times and have delivered 2 completely healthy little boys. I am currently pregnant with a little girl and, because a single umbilical chord artery (SUA) was discovered at my 18 week ultrasound, I had an amnio (something I had not had before). The amnio revealed that the baby had a balanced translocation of 2 and seven. 2 weeks and more genetic testing later, I learned that I have the same balanced translocation. I am hopeful that this pregnancy will result in the birth of a little girl who, like me, has no health or mental issues. Outside of the SUA, there appears to be no problems with the child (SUA is commonly related to in utero growth ******ation which results in a need for early delivery. It is considered a "soft genetic marker")
Therefore, I stand as proof that, at a minumum, someone with a blanced translocation can naturally conceive - in their 30s, mind you - 2 healthy children and one hopefully healthy child. (I had not miscarraiges) Knowing that I have this translocation, I might opt for a non-natural conception in the future but... at least I know it can turn out positively -- that might offer some solice to those who posted and could not afford or did not have access to IVF, etc.
For what it is worth: Below is the information I have been given by my genetic counselor -- I cannot vouche for its accuracy except that many of the statistics seem to be replicated in literature found on the internet and in a genetic counseling book I was able to check out at the local univeristy library:
* 1 in 625 people have a balanced translocation
* Having a blanced translocation increases the risk of having a child with an unbalanced translocation
* A healthy adult with a balanced translocation - male or femail - is at greater risk of producing offspring that end in miscarraige
* If the woman has a balanced translocation there is a greater chance that the baby will have an unbalanced translocation as opposed to if it is the man with the balanced translocation
* All children of someone with a balanced translocation should be tested even if they appear to be fine because they are at greater risk of, in the future, having children with unbalanced translocations.
* If you have a balanced translocation, your children do not necessarily inherit it
* If a child has a de novo balanced translocation there is approximatley a 6% chance of there being something "wrong" with the child -- that something can be as minor as a slighty short pinky to as major as mental ******ation and severe physical deformity
* a child with the same balanced translocation as its parents has a much smaller risk (2%, I think she said) of having anything be "wrong" with it
* Unbalanced translocations are at much greater risk of sever physical or mental problems.
I hope that this information is at least a little helpful. I know that I found this whole process very scary and am keeping my fingers crossed that my little girl will not have any adverse effects from the balanced translocation she has apparently inhereted from me.
Best of luck to you all...