All female dogs go into heat as part of their reproductive cycle, typically beginning at around six to twelve months of age. If you have a two-year-old female dog that has not yet gone into heat, it is important to take her to a veterinarian to determine the cause. There may be an underlying medical condition that is preventing her from going into heat, or she may be a late bloomer.
What can you do for a two year old dog who has never been in heat?
There is no such thing as a two year old dog who has never been in heat.