Can type 1 diabetes be hereditary?

Not directly. Type 1 diabetes occurs more often in some ethnic groups;higher in caucasions much lower in asians.Susceptability from parent to child may approximate 5%, but that means~95% don't.It occurs more often in populations susceptable to auto-immune disorders and may arise in someone with a previous problem like autoimmune hypothyroidism.
To some degree. Best illustration is... If 1 twin has it, the other twin has a 50% chance of getting it.

Related Questions

Can type 1 diabetes be hereditary?

Not exactly. Genetic influence has been recognized in some cases, however, no exact inheritance pattern exists. 85% of cases of type i diabetes mellitus occur in individuals with no family history of same disease. Read more...
Yes. It is thought to be hereditary. If you have a child with diabetes, your other children have a one in 20 chance of developing diabetes, which is much greater than the population ( one in 300) Read more...

Is type 1 diabetes hereditary?

Yes and no. The potential for type 1 diabetes is probably inherited just like everything we have is inherited. However, there needs to be some sort of trigger to bring the tendency to the point of being an active disease. At present we don't know what that trigger is. Read more...
Sort of. One in 400-500 people in the general population develops t1d, but 1 in 20 (5 percent) people are at risk if a parent, sibling, or child has the disease. That means that genes are important and play a role but it's not everything. Environmental factors are also involved that increase the risk for these genes to cause diabetes type 1. We are still trying to find out what and how it does this. Read more...