Polydactyly is a common hand (foot) bone disease, which is hereditary, which is certain. It is a kind of bone dysplasia mainly related to heredity (in addition to short finger and syndactyly, etc. However, different types have different ways of inheritance. Some are autosomal dominant inheritance (AD), some are autosomal recessive inheritance (AR), and some are polygenic inheritance.

Tell me about your situation:

If you are caused by drugs, then there is no inheritance, so children will not be affected.

If you are caused by a genetic disease, it should be recessive. Although your parents are not sick, they are both carriers. Your husband is healthy, but I'm not sure if he is a carrier.

If he is not a carrier (there is a high probability that he is not a carrier), then your child will certainly not get sick.

If he is a carrier, your child has a 50% chance of getting sick.

Finally; Even if the child has multiple fingers, it can still be removed when the child is about 3 years old.