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Talk with your veterinarian about what to expect with your cat's neuter.

Neutering a male cat is an excellent step to help your young cat grow into a loving, well-adapted family member. The main reason to neuter a male cat is to reduce the incidence of objectionable behaviors that are normal in the feline world but unacceptable in ours. A neutered male cat has had his testicles removed, not only ending his ability to reproduce but also removing his source of testosterone and his interest in hormone-driven behaviors.

• Roaming: More than 90 percent will reduce this behavior with neutering. Approximately 60 percent reduce this behavior right away.
• Fighting: More than 90 percent will reduce this behavior with neutering. Approximately 60 percent will reduce this behavior right away.
• Urine marking: More than 90 percent will reduce this behavior with neutering. Approximately 80 percent reduce this behavior right away.

Other benefits of neutering include a drastic reduction in cat urine odor, reduced incidence of feline asthma, and of gingivitis (gum inflammation). The reduction in fighting and roaming helps an outdoor male cat reduce his risk of FIV infection, bite wounds and associated abscesses, automobile-related trauma, dog/coyote-related injury, and other outdoor lifestyle situations that result from traveling away from home.

Cosmetic reasons to neuter a male cat have to do with the physical appearance. The mature tomcat is built for battle with a muscular body and facial thickenings (called shields) for protection against the bites of his combat opponents. Tomcats neutered after puberty will eventually lose these characteristics, and male cats neutered before puberty will never develop them.

A common shelter practice has been to adopt a young male kitten with his new owner paying a neuter deposit, which is then refunded when the kitten is neutered at the traditional age of six months. The problem has been that new owners do not return and young cats go unneutered. Given that studies have found that approximately 70 percent of feline litters are unplanned and there is presently an enormous feline overpopulation problem, the importance of neutering cannot be overemphasized.

What is Early Neutering?

Early neutering allows for kittens to be neutered prior to adoption thus preventing these kittens from contributing to the unplanned litter problem. There has been some controversy over this practice as it flies in the face of tradition and there have been questions about any negative health consequences of this practice.

Some concerns that have been explored include:

• Behavioral problems, shyness, or socialization issues in kittens neutered early.
  • Early neutered kittens share the behavioral benefits listed above, but temperament problems have not been documented.
• Kittens neutered early may be stunted or small.
  • Actually, early neutering delays the closure of the bone growth plates, making for a slightly taller cat.
• Early neutered kittens will have a narrowed urethra predisposing them to urinary blockage.
  • This has not borne out, either. Urethral dimensions in male cats do not vary based on the age of neutering.

Growth Plate Concerns

• Early neuter predisposes to capital physis fracture (a break in the growth plate of the femur, the long bone of the hind legs) or slipping.

Physis is the medical term for a bone growth plate; that plate is the area on an immature bone where the bone is actively growing in length. The bone in this area is softer, and the two pieces can slip apart, creating a problem for the growing bone. The "capital physis" is the growth plate of the head of the femur (one of the hip bones). If it slips, then surgery (a femoral head and neck ostectomy) is needed to restore function.

Early neutering is one of several factors correlated to slipping a capital physis, the other risk factors are being male, and being overweight. The problem seems to be a combination of being overweight and having delayed closure of the growth plates (as occurs with neuter before age six months). This injury is not common among early neutered kittens, but early neutered kittens are overrepresented among cats with this injury.

A study from Cornell University that followed 1600 cats for 11 years found no diseases, injuries, or other issues common in kittens neutered between 3.5 months and six months versus those neutered after age six months.

Ask your veterinarian about early neutering. Your veterinarian may prefer that kittens weigh at least 3 pounds so that the tissues are not too difficult to manipulate.

The Feline Neuter Surgery

The feline neuter is one of the simplest surgical procedures in all veterinary medicine. The cat fasts overnight so that anesthesia is given on an empty stomach. The scrotum is opened with a small incision and the testicles are brought out. The cords are either pulled free and tied to each other or a small suture is used to tie the cords and the testicle is cut free. The skin incision on the scrotum is small enough that external stitches are not usually required.

Recovery

There is minimal recovery with this procedure with some clinics discharging kittens on the same day as surgery. There should be no bleeding or swelling. No bathing is recommended until the incisions have healed for 10 to 14 days from the time of surgery. Always check with your veterinarian if you have any recovery questions post-surgery.