Dog Spaying and Neutering: The Right Age, Surgery and Home Care

Spaying or neutering a dog takes a little more planning than with cats: breed, size and age all affect the right timing. This guide covers what to know before you decide and what the days after surgery look like. Ask your vet for advice specific to your dog.

In short: Dog spaying and neutering is an operation under general anaesthesia that removes the reproductive organs. The right age depends on breed and size: small breeds are often done earlier, large breeds may be done once growth is complete. Recovery usually takes 10–14 days, with restricted activity and a dry wound.

What is spaying and neutering?

It is an operation under general anaesthesia that removes a dog's reproductive organs.

• Female dogs (spaying): the ovaries, often together with the uterus, are removed. Some clinics also offer keyhole (laparoscopic) surgery.
• Male dogs (neutering or castration): the testicles are removed.

Why spay or neuter?

• No unwanted litters, which helps keep stray dog numbers down.
• No womb infection (pyometra) in females. Pyometra can be life-threatening, especially in middle-aged and older females.
• Lower risk of mammary tumours, particularly when a female is spayed before her first heats.
• In males, testicular tumours are no longer possible and prostate problems become less common.
• No more heat cycles. Bleeding heats in females end; roaming and marking in males usually decrease.

Neutering does not replace training. Barking, pulling on the lead or fear-related aggression still need training.

At what age should a dog be spayed or neutered?

There is no single right age for dogs:

• Small breeds are usually done earlier, around the time of the first heat.
• Large and giant breeds: some vets recommend waiting until growth is complete, because of bone and joint development.
• If a female is in heat, surgery is usually planned for some time after the heat has ended.

Decide on the timing together with your vet, based on your dog's breed, weight and health history.

Before the surgery

• Check-up and tests: the vet examines your dog and may ask for a blood test depending on age.
• Fasting: food is withheld for a while before surgery. Ask your clinic exactly when to stop food and water.
• Toilet: take your dog for a short walk before you leave for the clinic.

After surgery: how long does recovery take?

Full recovery usually takes 10–14 days. During this time:

• Restrict activity. Short toilet walks on the lead only; no running, jumping, stairs or play with other dogs.
• Protect the wound. A cone or a surgical suit stops licking and chewing.
• No baths. Keep the wound dry, and no swimming until the stitches are out and your vet says it is fine.
• Only give prescribed medicine. Human painkillers can harm dogs.
• Check the wound daily. Slight redness in the first days is normal.
• Go to the stitch check, usually after 10–14 days.

When to call your vet

• Increasing swelling, redness, discharge or bleeding at the wound
• Stitches that have come open
• No appetite for more than a day, repeated vomiting or diarrhoea
• Marked weakness, pale gums or a swollen belly

Weight and diet afterwards

Neutered dogs need less energy. Measure their meals, count treats, and keep up regular walks. Ask your vet about your dog's ideal weight at check-ups.

What affects the cost?

For dogs the biggest factors are weight and sex: spaying a female takes longer, and a bigger dog needs more anaesthetic and materials. Tests before surgery, the method (open or laparoscopic), the cone, medicines and any overnight stay also affect the price. Ask what is included when you get a quote.