How often does a lab go in heat?

A female Labrador Retriever typically goes into heat approximately every six months, though this can vary between individuals. The heat cycle, also known as estrus, lasts about 2 to 3 weeks. During this time, the dog may exhibit behavioral changes and physical signs, such as swelling of the vulva and increased urination. It's important for pet owners to monitor their dogs during this period for their safety and health.