15 Dog Breeds That Should Be Neutered Later

Neutering your dog might seem straightforward, but timing can make a surprising difference for some breeds. Studies reveal that particular pups face unexpected health challenges when neutered too early. Ultimately, seeking guidance from a veterinarian is essential to determine the best timing for your dog’s health.

Golden Retrievers

Golden Retrievers who are neutered early face an increased risk of hip dysplasia, and research from the University of California, Davis found that 10% of early-neutered males develop joint disorders. However, delaying neutering until after 12 months supports healthier skeletal development, reducing long-term mobility issues and promoting better joint stability.

Boxers 

Boxers face an elevated cancer risk when neutered early, particularly with mast cell tumors. The American Veterinary Medical Association (AVMA) also mentions that early neutering significantly increases this risk, as hormonal shifts over time may weaken immune function. For this reason, experts recommend postponing the procedure until after 18 months. 

Rottweilers 

Delaying neutering until 24 months maximizes growth plate development and significantly reduces cancer vulnerability in Rottweilers. This is supported by a Purdue University study that found early-neutered Rottweilers face a fourfold increase in the risk of osteosarcoma as the hormonal changes compromise long-term skeletal health.

Border Collies 

Early neutering can disrupt the natural growth process in Border Collies, leading to delayed growth plate closure and a higher risk of agility-related injuries. According to research from the University of California, allowing their muscles and bones to develop fully promotes better long-term mobility, with experts advising neutering after 14 months.

Bernese Mountain Dogs

Bernese Mountain Dogs face increased cancer risks with early neutering. In addition to early neutering, genetic predisposition and environmental factors, such as smoke, contribute to this risk. Waiting until two years supports immune regulation and may reduce the likelihood of several cancers.

Cocker Spaniels

Neutering at 18 months allows for proper hormonal development, which may support overall health in some breeds. Research published in Frontiers in Vet Science also shows that early spaying in female Cocker Spaniels before two years of age is associated with higher cancer risk, with incidence rates reaching 17%. 

Australian Shepherds 

Early neutering in Australian Shepherds can increase the risk of joint disorders, particularly hip dysplasia and cranial cruciate ligament tears. Veterinary research, including studies from the University of California, Davis, suggests delaying the procedure until 18 months may support healthier joint development.

Doberman Pinschers 

According to the 2020 study published in Frontiers in Veterinary Science, early neutering may increase the risk of joint disorders in female Dobermans, particularly when spayed before two years of age. The study also found that early neutering in both sexes can lead to behavioral changes such as increased noise sensitivity. 

Boston Terriers

This dog breed is prone to an elevated risk of cancer when neutered early. The Frontiers in Veterinary Science study also revealed that male Boston Terriers neutered before one year of age exhibited a significant increase in cancer incidence compared to their intact counterparts. 

Vizslas

Research published in The Journal of the American Veterinary Medical Association revealed that Vizslas neutered before 12 months have a higher incidence of behavioral disorders, along with cancers like hemangiosarcoma and lymphoma. Delaying neutering can help mitigate these health risks and support overall well-being.

Newfoundlands 

Newfoundlands neutered early show higher rates of elbow and hip dysplasia, as their rapid growth requires proper hormonal regulation. Waiting until two years helps strengthen joints and lowers the risk of ligament tears, promoting better long-term mobility.

German Shepherds 

Experts recommend waiting until two years of age for this breed to minimize the risk of developmental issues and preserve long-term musculoskeletal health. Studies from the University of California have shown that early neutering in male German Shepherds doubles the incidence of hip dysplasia in those neutered before one year.

Shetland Sheepdogs 

Postponing neutering until 16 months may decrease the likelihood of urinary incontinence in Shetland Sheepdogs, as hormones support bladder control during development. VCA Animal Hospitals reports an increase in early-neutered dogs, with factors like infections or congenital abnormalities also contributing to this condition.

Labrador Retrievers 

A 2014 study published in Plos One revealed that early-neutered Labrador Retrievers are twice as likely to develop cranial cruciate ligament tears as those neutered later. This occurs because early neutering disrupts bone growth, which affects joint stability. Waiting until 18 months allows for proper joint formation.

Beagles 

VCA Animal Hospitals notes that neutering can slow metabolism and increase fat retention, contributing to obesity if diet and exercise are not adequately managed. Delaying neutering helps maintain hormonal balance, which supports better weight regulation. As a result, experts recommend the procedure after 18 months.