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 Food
Hill's Science Plan Puppy Multipack Wet Dog Food with Chicken & Beef are complete premium pet foods for growing puppies from weaning until 1 year old and for pregnant and nursing dogs. Your puppy will love these deliciously smooth and savoury minced loaves, formulated for balanced nutrition and overall health.
Mature Adult Dog Food
Hill's Science Plan Mature Adult Multipack Wet Dog Food with Chicken & Beef are complete premium pet foods for mature adult dogs from 7 years. Your dog will love these deliciously smooth and savoury minced loaves, formulated to deliver the appropriate amount of energy to support the needs of adult dogs.
Adult Wet Dog Food with Beef
Hill's Science Plan Adult Multipack Wet Dog Food with Chicken, Beef & Turkey are complete premium pet foods for adult dogs from 1 year. Your dog will love these deliciously smooth and savoury minced loaves, formulated for balanced nutrition and overall health.
Hypoallergenic Adult Dog Food
Hill's Science Plan Hypoallergenic Adult Wet Dog Food with Salmon is a complete premium pet food for all adult dogs from 1 year. This savoury tinned loaf is specially formulated for dogs with delicate skin and stomachs. It features a single novel animal protein source and is grain-free.
Related articles
How to Feed a Fussy Eater Dog: Tips & Advice for Dog Picky Eaters
Learn effective tips for feeding a dog that's a picky eater and ensure proper nutrition for a finicky eater. Discover tips for pet parents at Hill's Pet UK.
Dangers of Raw Diets for Dogs
Learn about the potential health risks of a raw diet for dogs and why they aren't the best option for your pup or you.
Human Foods That Are Dangerous for Your Dog
Many human foods are dangerous to dogs. Read about 5 of the worst toxic food offenders that can kill your dog - and how much it takes to hurt them.
Feeding your puppy
How, when and what to feed your new puppy is an important decision, learn more about the things to consider for feeding your puppy.
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 flavourful, 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 flavourful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.