Dogs in heat
Female dogs are "in heat" when they have entered the fertile part of their reproductive cycle. A heat, on average, lasts for 3 weeks and a dog will usually go into heat every 6 to 8 months.
Most breeds have their first heat at about 6 months old but it may be earlier or later.
A heat can usually be identified when there is some bleeding from the vagina, a swollen vulva or increased urination. Female dogs do not produce very much blood, and in a small dog you may not even notice the bleeding.
Unwanted attention
The first thing you will notice if you have a bitch in heat is that she will attract un-castrated male dogs within a very large radius. Her behaviour will change too, so while she normally wouldn't let males mount her, she almost definitely will while in heat.
Additionally, male dogs will go to surprising lengths to get to a female in heat. While your bitch is in heat it's inadvisable to leave her unsupervised outside, and you'll need to keep her on the lead at all times while on walks. In general, other pet owners you encounter will be able to control their dogs, but the scent of a female in heat can cause aggressive behaviour in some dogs.
Tasty Tips
Bleeding
The second concern is bleeding. If your dog is producing enough blood to cause a mess you may want to restrict her to easy-to-clean, un-carpeted floors. Just leaving her outside is a bad idea unless you want her to have male visitors (and potentially puppies).
Unless you intend breeding, it is best to have her spayed. Spaying will prevent her from going into heat.
There is some debate about when it is best to spay your bitch. Some veterinarians will advise to let a dog have one heat while others will spay as early as 6 months. Ask your vet which course of action they think is right for your dog.
Related products
Puppy Sensitive Stomach & Skin Salmon & Vegetable Stew
Gentle on stomachs while nourishing skin & supporting development in growing puppies
Adult Small & Mini Lamb Meal & Brown Rice Recipe Dog Food
For the faster metabolism of Small & Mini dogs
Puppy Sensitive Stomach & Skin Salmon & Brown Rice Recipe
Delicious, highly digestible recipe, gentle on stomachs. Nourishes skin & promotes a lustrous coat
Adult 7+ Savory Stew with Beef and Vegetables Dog Food
A delicious complement to the superior nutrition of Science Diet dry dog food
Related articles
Things You Can Do to Help Your Dog's Sensitive Stomach
A dog with a sensitive stomach has special needs. Learn more about sensitive stomach symptoms in your dog, what you can do to help sooth your pet’s insides and get recommendations on sensitive stomach dog food.
Hill's Puppy Food: Quality Ingredients for Health & Nutrition
Selecting the right food for your puppy is a key to quality nutrition and a long, healthy life., Learn more about how to select the right puppy food.
Helpful Tips for Exercising with Your Dog
Though it may seem like your four-legged friend loves nothing more than to nap on the couch, dogs need regular exercise to stay healthy just like people do.
What to Feed Your Pregnant or Nursing Dog
Learn what you can feed your pregnant or nursing dog to keep her and her new pups healthy.
Put your dog on a diet without them knowing
Our low calorie formula helps you control your dog's weight. It's packed with high-quality protein for building lean muscles, and made with purposeful ingredients for a flavorful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.
Put your dog on a diet without them knowing
Our low calorie formula helps you control your dog's weight. It's packed with high-quality protein for building lean muscles, and made with purposeful ingredients for a flavorful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.