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Should I spay or neuter my rabbit?
Generally, yes — for both sexes, unless a rabbit-experienced veterinarian recommends otherwise for that individual rabbit. Spaying all but eliminates a very high lifetime risk of uterine cancer and infection in females; neutering usually greatly reduces spraying and hormone-driven aggression in males and removes their smaller reproductive-cancer risk. Altered rabbits are often calmer, litter-train far more reliably, and are better prepared for safe bonding with another altered rabbit. It is a commonly performed procedure for a rabbit-experienced veterinarian, but it still requires individualized surgical and anesthesia assessment — and that veterinarian will also decide the right timing for your rabbit.
Last reviewed September 18, 2026
- Why
- Unspayed females carry a very high lifetime risk of uterine cancer and uterine infection. Unneutered males commonly spray urine and show hormone-driven aggression, and can, less commonly, develop reproductive cancers.
- Note
- Generally recommended for both sexes, indoors or out, companion or solo. Your rabbit-experienced veterinarian decides the right timing for your rabbit — sexual maturity comes early, so do not leave it indefinitely.
- Note
- Spay/neuter is the single biggest factor in reliable litter box habits — far more effective than training alone.
- Watch for
- Any change in eating or droppings after surgery — call your veterinarian.
Sources
- House Rabbit Society — Spaying and Neutering Basics · Spaying and Neutering Basics — health and behavior rationale, reproductive-cancer risk "virtually eliminated" for both sexes, altered rabbits live longer, unless altered cannot safely bond; "Neutering and spaying improve litter box habits" · accessed September 17, 2026 · CM-HEALTH-013, CM-LITTER-001
- Rabbit Welfare Association & Fund — Neutering – Castration and Spaying · Neutering – Castration and Spaying — "vital for a long and healthy life", uterine cancer/pyometra risk, male testicular/prostate cancer "small" risk removed, spraying and aggression reduction, small-risk-of-surgery sentence; "Neutering usually makes litter training much easier" · accessed September 17, 2026 · CM-HEALTH-013, CM-LITTER-001
- VCA Animal Hospitals — Spaying in Rabbits · Spaying in Rabbits — cancer risk "significantly minimize[d]", hormone-induced behaviors reduced, small-risk-of-any-surgery sentence, "not fat and lazy", post-op report appetite/droppings changes to the vet; "Litter box habits are more predictable in spayed rabbits" · accessed September 17, 2026 · CM-HEALTH-013, CM-LITTER-001
- RSPCA — How to keep a rabbit healthy & happy · How to keep a rabbit healthy & happy — unneutered females high tumour risk, unneutered rabbits more likely to fight/spray · accessed September 17, 2026 · CM-HEALTH-013
- House Rabbit Society — Rabbit Litter Training FAQ · Rabbit Litter Training FAQ — spay/neuter and litter-habit difficulty/success · accessed September 17, 2026 · CM-LITTER-001
Going deeper
Why females: uterine disease
Unspayed female rabbits face a very high lifetime risk of uterine cancer and uterine infection. Spaying removes the organs at risk and all but eliminates that risk. This is the strongest single reason veterinarians and rabbit welfare organizations recommend spaying every female rabbit not being deliberately bred.
Why males: spraying, aggression, and their own cancer risk
Unneutered male rabbits commonly spray urine to mark territory and can show hormone-driven aggression — biting, lunging, circling, growling. Neutering greatly reduces or stops both as testosterone falls. Male rabbits can also, less commonly, develop reproductive cancers; neutering removes that smaller risk.
What changes afterward
Altered rabbits are often calmer companions, are far more likely to use a litter box reliably, and — unlike an intact rabbit — is better prepared for safe bonding with another altered rabbit. Neutering does not make a rabbit fat or lazy.
Timing: your vet decides
Rabbits reach sexual maturity early, so this is not a decision to defer indefinitely. There is no single age that fits every rabbit — your rabbit-experienced veterinarian will examine your rabbit and set the right timing for their size, health, and breed. After a male is neutered, he can stay fertile for a while, so keep him away from any unspayed female for as long as your vet advises.
Choosing the surgeon
This is a commonly performed procedure for a rabbit-experienced veterinarian, but every rabbit still needs an individualized surgical and anesthesia assessment. Your vet will also talk you through their rabbit anesthesia experience. As with any anesthetic or surgical procedure, in any species, there is a small risk — and for the great majority of rabbits, the health and behavior benefits far outweigh it.
Living alone still counts
None of this depends on whether your rabbit has a companion. The health case for spaying or neutering — all but eliminating a very high uterine-disease risk in females, usually greatly reducing spraying and hormone-driven aggression and removing a smaller cancer risk in males — applies just as much to a rabbit who lives alone indoors.