What are the odds of twins having twins?
The odds are 75%
There may be no connection to your odds of having twins and the fact that your uncle is a twin. It depends on whose side of the family the uncle is on. If the uncle is a fraternal twin on your mother's side, then your odds are slightly increased compared to the general population. If the uncle is an identical twin or on your father's side, your odds of having twins are the same as…
In the general population, the odds of having twins are about 3 in 100, or 3%. They seem to increase in relations to the mother's history, among other factors, but not the father's history. The odds of having identical twins are not affected by personal history of either parent. Identical twinning is a random event that occurs about 1 in 285, or about 0.35%.