Rabbit Uterine Cancer Prevention Through Spaying

Uterine adenocarcinoma affects the majority of unspayed female rabbits by age 5, making spaying a critical welfare intervention for female rabbit health.

Key Facts

Uterine adenocarcinoma develops in 50-80% of intact female rabbits by age 4-5 years
The cancer is malignant and metastasizes to lungs and other organs - it is uniformly fatal if untreated
Signs include blood in urine, mammary swellings, behavioral changes, and decreased appetite
Spaying before age 2 years reduces cancer risk to near zero
Spaying also prevents uterine infections (pyometra), false pregnancies, and associated behavioral changes
The surgery carries anesthetic risks in rabbits that diminish significantly when performed by rabbit-experienced vets

Welfare Considerations

Uterine cancer in rabbits is one of the most preventable welfare problems in companion rabbit care. The prevalence - potentially majority of unspayed females - means that not spaying is a welfare gamble with very poor odds. The cancer causes suffering through hemorrhage, weight loss, and metastatic disease. Finding a rabbit-savvy vet who is experienced with rabbit anesthesia significantly reduces surgical risk. The welfare argument for spaying female rabbits before age 2 is compelling and evidence-based.

What You Can Do

Spay female rabbits before age 2 years with a rabbit-experienced veterinarian
Research local rabbit-savvy vets before acquiring a female rabbit - not all vets are rabbit-experienced
Monitor unspayed rabbits for early warning signs including blood in urine or behavioral changes
Neuter male rabbits alongside females - it improves bonding and reduces territorial behavior
Join rabbit welfare communities to find recommended rabbit-savvy vets in your area
Share information about rabbit cancer prevalence with other rabbit owners who may not know the risk