American Staffordshire Terrier
美國斯塔福德郡㹴
Updated 2026-09-09
At a glance
The American Staffordshire Terrier — AmStaff — is a stocky, muscular bull-and-terrier breed developed in the United States from 19th-century fighting stock and registered by the AKC in 1936; it is recognised by the CKC and FCI but not by The Royal Kennel Club. Good-natured, confident and smart, keenly aware of its surroundings and game for anything, a responsibly bred, well-socialised AmStaff is a loyal, trainable, people-oriented companion that thrives as part of the family. It is strong-willed, exuberant and physically powerful, so early socialisation and training are a necessity, and because dog aggression can develop even in well-socialised dogs it should never be left alone with other dogs.
Facts
| Size | Medium |
|---|---|
| Height | 43–48cm |
| Weight | 18–32kg |
| Life expectancy | 12–16years |
| Breed group | AKC: terrier FCI: 3 |
| Role | Terrier |
| Coat | Short coat |
| Shedding | 2/ 5 |
| Exercise | 45–90min/day |
| Can be left alone | up to 4 hours |
| Companionship need | 4/ 5 |
| Trainability | 3/ 5 |
| Barking | 3/ 5 |
| Good with children | 3/ 5 |
| Good with other dogs | 3/ 5 |
| Heat tolerance | 4/ 5 |
| Cold tolerance | 2/ 5 |
Health
This page is general information compiled from published sources. It is not veterinary, legal or purchase advice. Dogs vary within a breed — talk to a vet or a reputable breeder about the dog in front of you.
Health notes are not veterinary advice. Conditions listed are those reported for the breed, not a diagnosis of any dog. Always consult a veterinarian.
Hip dysplasia
Commonly reported in the breed; breeders screen hips by X-ray. Ask your vet about hip screening and about keeping your dog lean and fit.
Heart conditions
Certain heart conditions are reported in the breed; breeders may have breeding stock examined by a veterinary cardiologist. Ask your vet about heart checks at routine visits.
Skin and allergy problems
Skin problems and allergies are commonly reported in the breed. Ask your vet if you notice itching, redness or recurring ear/skin infections.
Neuroaxonal dystrophy / neurological DNA-tested conditions
Inherited neurological conditions are reported in the breed and DNA tests exist for some. Ask your breeder which tests were done.
Behaviour
People-oriented — not a backyard dog
The AKC says an athletic, energetic AmStaff needs a lot of exercise, but leaving it in the yard all day is the wrong approach: it is a people-oriented dog that thrives when made part of the family, and long play sessions with its owner develop its physical and psychological health; many enjoy obedience, agility, dock diving and even search-and-rescue. The CKC calls it bright, alert and courageous, a great family pet and no couch potato.
Socialisation is a necessity; never alone with other dogs
The AKC says that given the AmStaff's strong will, physical strength and exuberance, early socialisation and puppy classes are a necessity rather than a recommendation; its intelligence and desire to please make training fun and easy, though chewing and digging can be hard to resolve. It must be noted that dog aggression can develop even in well-socialised AmStaffs, and an AmStaff should never under any circumstances be left alone with other dogs.
Training and barking
AKC trait chart: trainability 3/5, barking level 3/5. Individual dogs vary; early socialisation and reward-based training are recommended for every breed.
Official guidance
Summaries of official documents are ours; the source is linked. Breed standards, laws and licensing rules change — check the issuing body for the current version.
American Kennel Club — American Staffordshire Terrier
Breed overview, breed-trait chart, history, official standard summary and health notes from the AKC and the national parent club.
Read the sourceAccessed 2026-09-09
Canadian Kennel Club — American Staffordshire Terrier (Terriers)
Origin, temperament, activity level, height/weight, coat and grooming as described by the Canadian Kennel Club.
Read the sourceAccessed 2026-09-09
FCI nomenclature — American Staffordshire Terrier (standard no. 286, group 3)
FCI breed nomenclature entry with the official breed standard PDF in English, French, German and Spanish.
Read the sourceAccessed 2026-09-09
What owners say
Owner advice is quoted from public community posts and reflects those owners' opinions, not PocketPaw's position. It is unverified and not a substitute for professional advice. Each item links to where it was said.
“The parent club describes an AmStaff as strong, athletic, intelligent and driven to please, able to excel at agility, carting, therapy, search-and-rescue and protection work, but also strong-willed, exuberant and impulsive while remaining quite sensitive, so training works best when kept fun and diverse and the owner must establish leadership early and keep it as the dog matures. It urges heavy socialisation of puppies and young adults with many other dogs in controlled settings with dogs of known temperament, says an AmStaff should in general not be left alone with other dogs because dog aggression can develop even in well-socialised dogs, that aggression towards humans in non-threatening situations should never be seen, and that while they are very good with children, no dog and child should be left alone together.”
— Staffordshire Terrier Club of America — Breed Info via breed clubWorldwide2026-09-09
Sources
- [1]American Staffordshire Terrier — Dog Breed Information — American Kennel Club (Accessed 2026-09-09)
- [2]American Staffordshire Terrier — Choosing a Breed — Canadian Kennel Club (Accessed 2026-09-09)
- [3]American Staffordshire Terrier — FCI standard no. 286 — Fédération Cynologique Internationale (Accessed 2026-09-09)
- [4]How do I help my dog adjust to spending time alone? — The Royal Kennel Club (Accessed 2026-09-09)
- [5]Incidence and risk factors for heat-related illness (heatstroke) in UK dogs under primary veterinary care in 2016 (Hall, Carter & O'Neill, Scientific Reports 10:9128) — Nature / Scientific Reports (Accessed 2026-09-09)
- [6]Breed Info — Staffordshire Terrier Club of America — Staffordshire Terrier Club of America (public breed pages) (Accessed 2026-09-09)
Still have questions?
Ask owners on the PawMunity forum — every breed has its own board.
Breed data compiled by PocketPaw from the sources credited on each entry. Text and layout © 2026 NextPath Solutions Limited. Please link to a page rather than copying it.