Future Pregnancies and Counselling

Almost every couple asks this, often quietly and often long before they feel ready to say it aloud. It is a reasonable question and it has a real answer — but the answer depends entirely on which genetic cause your child has.

The range is wide. Some changes arise newly in the baby and are very unlikely to happen again. Some are inherited and carry a substantial recurrence risk. Some depend on which parent carries the change.

The most common transient form illustrates how specific this gets. Where it is caused by a duplication inherited from the father, each of his children has a 50% chance of inheriting it and is at high risk of developing the condition. Where the mother carries the same duplication, each child still has a 50% chance of inheriting it — but is not at increased risk of developing neonatal diabetes. And where the cause is a chance change in how the region is switched on, rather than an inherited duplication, the risk of it recurring is low.

Where parents are related by blood, which is common in parts of India, recessive causes are more likely and the recurrence risk in future pregnancies can be meaningfully higher.

You cannot work this out from your child's report yourself, and you should not try. Ask for a genetic counselling appointment specifically to discuss future pregnancies. Bring the report.

Testing during a future pregnancy, or testing a newborn early, is possible for some causes — worth asking about at that appointment.

There is no correct decision here, only an informed one. What genetic counselling gives you is real numbers instead of fear.