While the cycle varies from one dog to the next, most are in heat for two to three weeks. Typically, seven to ten days into her cycle, she will begin to allow male dogs to mate with her.
All breeds of dogs are in heat for approximately 21 days. There are three stages in a heat cycle, which are Proestrus (7-10 days), Estrus (4-7 days), and diestrus (7-10 days).
Basset hound dogs can stay in the heat for 3 weeks or 21 days, she usually bleeds for 7 - 9 days, if the dog is not to be bred then keep her away from male dogs.
It can be as little as five days or as much as three weeks. They will generally go into heat twice a year. Most will start their first cycle of going into heat at around six months of age or as late as 14 months old. Getting them spayed/neutered will solve this problem if you don't want to breed.
I have a basset hound too(She has 5 years and I love her) but I don't know for sure how long they stay in heat. It's not the same every time.. Last year in the summer, my dog was in heat for 2 months. Wait some time to see and if it lasts to long go with the dog at the vet.
many dogs have that state for about two different or the same days out of the month. they can last about two to four weeks. The average is about three weeks.