Neutering: When and Why for Dogs & Cats

Neutering (spaying females, castrating males) is one of the most common procedures in veterinary practice—and for good reason. It offers a range of medical and behavioural benefits, and it helps prevent unplanned litters.

Benefits at a glance

• Dogs: can reduce roaming and hormone‑driven behaviours; lowers risk of pyometra (females) and certain cancers; eliminates false pregnancies; may reduce prostate issues in males.

• Cats: reduces spraying/roaming, helps prevent fighting and related infections; prevents pyometra in females; reduces risk of certain reproductive cancers.

When should I neuter my pet?

• Dogs: timing depends on sex, breed, and size. Many small to medium breeds are commonly neutered around 6–12 months. For some large/giant breeds, later timing may be advised—speak to us for a personalised plan.

• Cats: often neutered around 4–6 months. Indoor-only cats can be scheduled flexibly; outdoor cats are often neutered earlier to prevent mating and roaming.

Pre‑op considerations

• Health check and weight assessment.

• Fasting instructions for the day of the procedure.

• Microchipping is ideal while under anaesthesia if not already done.

The day of surgery

• Day surgery under general anaesthetic.

• Pain relief is provided; your pet goes home the same day with a care plan.

Recovery & aftercare

• Keep activity controlled for the period we recommend (usually 7–14 days).

• Monitor the incision for redness, swelling, or discharge.

• Use a buster collar or body suit as directed.

• Pain medication as prescribed.

Common questions

• Will it change my pet’s personality? Not their core temperament—but hormone‑driven behaviours may reduce.

• Will my pet gain weight? Weight gain is not inevitable—calorie control and exercise keep them trim.

• Is it safe? It’s a routine procedure with modern anaesthesia and analgesia; risks are low and we review your pet’s health in advance.

How SigmaVet supports you

• Individualised timing advice by breed/size/behaviour.

• Clear, written aftercare and free post‑op checks if needed.

• Options to combine with dental checks, microchipping, or parasite plans.