Neutering and spaying rabbits: what to expect

Why neuter or spay a rabbit?

Neutering protects a rabbit's health, makes it far calmer to live with, and is the only safe way to let it live with another rabbit. Every major rabbit charity recommends it unless you plan to breed.

The biggest reason is cancer in females. The House Rabbit Society puts the lifetime risk of reproductive cancer in unspayed does at up to 85%, says changes in the womb can start as early as 18 months, and that almost every female over four shows them. The RSPCA describes uterine cancer as often fatal, with rates in older unspayed females that may approach 80%. Spaying removes that risk, along with pyometra, a dangerous womb infection.

For males, the Rabbit Welfare Association lists less spraying, easier litter training, less aggression and the end of a small risk of testicular cancer. For both sexes, neutering is what makes bonding possible: the House Rabbit Society says unaltered rabbits generally cannot be bonded safely, and unneutered pairs fight and breed. Our guide to bonding two rabbits starts from here.

Unneutered male rabbit behaviour

An unneutered buck is ruled by hormones from about 3 to 4 months. The House Rabbit Society lists the classic signs: nipping, lunging, circling your feet, mounting anything that will hold still, and honking, a soft grunting sound made while courting. Most bucks also spray strong-smelling urine to mark territory, which can reach walls and people, and scatter droppings. Litter habits often fall apart, and some turn aggressive enough that they end up rehomed.

None of this means the rabbit is badly behaved. It is a full-time drive to mate, and neutering is the fix.

Unspayed female rabbit behaviour

Unspayed does can be just as hormonal as bucks. Common signs are growling, lunging or boxing when you reach into their space, guarding their home, digging, mounting, circling and honking. Many have false pregnancies, where they build a nest, pull fur from their chest and belly, and turn grumpy for a few weeks even with no male nearby. The Rabbit Welfare Association lists fewer phantom pregnancies, less territorial aggression and safer female pairs, even sisters, among the benefits of spaying.

What age should a rabbit be neutered?

Males can be castrated as soon as both testicles descend, usually at 10 to 12 weeks. Females are spayed a little later, once they are big enough for safe surgery.

The sources differ a little on females. The Rabbit Welfare Association prefers 16 to 20 weeks, because does can fall pregnant from about 4 months and waiting until 6 months risks a litter. The House Rabbit Society says many vets prefer about 6 months. We'd follow the RWAF if your doe lives anywhere near an unneutered buck, and your vet's advice otherwise. For rabbits over 3 or 4, or with weight, dental or breathing problems, the RWAF advises a frank talk with your vet about risks and benefits.

How much does it cost to have a rabbit neutered or spayed?

Spaying a female always costs more than castrating a male, because it is a longer abdominal operation. That is as precise as most charities get: none of the UK charity pages we checked publishes a single price, and Medivet says each practice quotes its own. Ring two or three rabbit-savvy vets near you and compare like for like.

In the US, the San Francisco House Rabbit Society calls $150 to $400 low cost for a rabbit spay or neuter in California, and lists clinic prices from about $33 to $300 depending on county and sex (as of November 2026). Full-price private clinics are often higher.

• Is a health check before surgery included?
• Is a blood test included or recommended for an older rabbit?
• Is pain relief to take home included?
• Are there stitches to remove, and is the check-up included?
• Who do I ring out of hours if something goes wrong?
• How many rabbits does the practice neuter, and who will do the surgery?

The RWAF urges choosing a vet for rabbit experience and anaesthetic record, not price, and keeps a directory of rabbit-friendly vets. Local rabbit rescues often know which practices neuter rabbits well and whether any low-cost scheme runs near you. Our guide to rabbit costs shows how neutering fits into the set-up budget.

Before surgery: how to prepare

1. Book a check first. A pre-op health check lets the vet spot dental, heart or weight problems and talk about a blood test.
2. Keep the diet the same. The RWAF says not to change food in the week or so before surgery. Do not fast your rabbit: rabbits cannot vomit.
3. Feed as normal on the day. Give breakfast and hay on the morning of surgery.
4. Pack for the day. Line the carrier with a towel and pack a small bag of their usual hay, nuggets and favourite greens so they eat straight after waking.
5. Clean the recovery space. Wash bedding, wipe bowls and set out a fresh litter tray that morning.

Caring for your rabbit after neutering

The first 48 hours matter most. Your job is simple: keep your rabbit warm, quiet and eating, and check the wound every day.

1. Collect an alert rabbit. The RWAF says your rabbit should be awake, alert and ideally eating when you pick them up. Ask what pain relief has been given and when the next dose is due.
2. Set up a quiet space indoors. A clean, dry, calm area with no ramps or high shelves. The San Francisco House Rabbit Society suggests a pen about 1.2 x 1.2 m (4 x 4 ft).
3. Offer food at once. Hay, fresh greens and their usual nuggets as soon as you get home. Eating keeps the gut moving.
4. Watch what goes in and out. Check they eat, drink, wee and pass droppings. A clean litter tray in easy reach helps.
5. Check the wound daily. Look for swelling, redness, discharge or a gap, and stop licking or chewing at stitches.
6. Limit running and jumping. About 2 days of rest for males and 5 to 6 days for females, says the RWAF. The San Francisco House Rabbit Society suggests a full 10 days of indoor quiet. We'd follow your vet, and lean towards the longer rest for a doe.
7. Go back for the check-up. Keep any follow-up appointment and ask whether stitches need removing.

Our rabbit health guide covers the signs of gut slowdown and other emergencies in more detail.

Rabbit behaviour after neutering

Expect a calmer, friendlier rabbit, but not overnight. The House Rabbit Society says to allow about a month for hormones to fade and better behaviour to show. Spraying, circling, nipping and mounting usually drop off sharply, and litter training gets much easier.

Some things carry on. Neutered rabbits of both sexes still mount now and then to show who is in charge; the RWAF says this is about rank, not mating, and spayed does sometimes mount males. Habits can linger too, so keep up the litter training, and our guide to litter training a rabbit has the method. The House Rabbit Society adds that rabbits are teenagers until about 18 to 24 months, so a young rabbit may stay lively after surgery. Neutering does not change personality. For more on what each signal means, see our guide to rabbit behaviour and body language.

Female rabbit behaviour after spaying

Most spayed does stop guarding their space, stop false pregnancies and become easier to handle within a few weeks. A doe who growled and boxed whenever you reached into her home often becomes far more relaxed. A female is sterile the moment she is spayed, but her wound is bigger than a male's, so keep any partner gentle with her until it heals.

Male rabbit behaviour after neutering

Neutered bucks spray less, roam less and usually stop circling and humping feet. They are not sterile at once, though. Stored sperm can survive for a while: the San Francisco House Rabbit Society says up to 30 days, Medivet four to six weeks, and the RWAF up to six weeks. We'd follow the six-week figure and keep him apart from any unspayed doe until then, letting them see and smell each other through mesh.

Neutering is one part of a healthy rabbit's life. Our complete rabbit care guide covers the rest.