Bull Terrier questions, answered

Adult male English Bull Terriers typically weigh 22-38 kg (49-84 lb) and females 18-28 kg (40-62 lb). Miniature Bull Terriers are 11-15 kg (24-33 lb) (male) and 10-14 kg (22-31 lb) (female). Weight on its own is a poor health indicator in this breed, because heavy muscling hides body fat. Body condition score is the more useful measure. See the weight and body condition guide.

Mainly size. They share the same distinctive egg-shaped head and much of the same temperament, but Miniatures are roughly a third of the weight. They also carry a health risk the standard breed does not: primary lens luxation, an inherited eye condition with a genetic test available. See the Miniature Bull Terrier guide.

Size is the clearest difference: an EBT stands 21-22 inches and weighs 50-70 lb, a Staffy 14-16 inches and 24-38 lb. The head is definitive though. The EBT's egg-shaped, down-faced profile with no stop is unique to the breed. They also carry different health risks. The full comparison covers temperament, exercise and cost.

Typically 10-14 years. They are generally considered senior from around seven, which is a sensible point to move to six-monthly vet check-ups and to start tracking water intake and weight deliberately rather than by impression. See the senior care guide.

They have a reputation for it, but what usually looks like defiance is either a motivation problem or, surprisingly often, a hearing problem. Congenital deafness is common in the breed and regularly gets mistaken for wilfulness. If recall is unreliable but your dog is otherwise eager and responsive, consider hearing before you conclude attitude.

Brief, interruptible chasing during excitement is normal. The compulsive form is defined by frequency, duration and whether your dog can be interrupted at all. In a Tufts University study of 333 Bull Terriers, 74% of affected dogs chased daily and 28% had bouts averaging over 30 minutes, with a median onset around six months. Run the spin and tail-chasing check for a read on where your dog sits.

Yes. Congenital deafness in this breed is linked to the gene responsible for the white coat, and white dogs are affected considerably more often than coloured ones. BAER testing is the only conclusive answer: it takes 10-15 minutes, is not painful, and can be done from around five to six weeks old. See the deafness guide.

Bull Terriers are among the most allergy-prone breeds, with a genetic predisposition to atopic dermatitis and a thin coat that offers little barrier protection. The four usual causes are food, environmental allergens, contact irritants and stress-driven scratching. Identifying which one comes before treating: four weeks of logging body areas, severity, food and walks is the fastest route to the trigger. See the allergies and skin guide.

A complete food with a named protein as the first ingredient. Beef, dairy and chicken account for the majority of confirmed canine food allergies, so for a skin-sensitive dog a limited-ingredient food with a novel protein such as salmon, duck or venison is the usual starting point. Avoid "meat and animal derivatives", which can vary batch to batch and make an elimination trial impossible. See the food guide.

Most healthy adults do well on 60-90 minutes a day across at least two sessions, with mental stimulation counted as part of the load. Puppies are different: the common guideline is about five minutes of formal lead walking per month of age, because growth plates stay open until roughly 12-18 months. See the exercise guide.

The main breed concerns are hereditary kidney disease (nephritis and polycystic kidney disease, both largely silent until late), congenital deafness, atopic skin disease, zinc-responsive dermatosis and compulsive behaviour disorders. Increased water intake is the single most useful early sign to watch for, which is why measuring it is worth the effort.

A health and care tracking app for English Bull Terrier and Miniature Bull Terrier owners. It covers routines, health logs, vet costs, behaviour tracking and food label checks, and each tool links through to a free guide explaining what your data means.

Both. The app supports each with breed-specific guides and tracking, including the separate weight ranges and the health risks that differ between them.

No. There is no account and no sign-up. Data is stored locally on your device, so your dog's records stay private by default rather than by policy.

Yes. You can choose a photo from your device gallery when creating or editing a profile.

Yes. You can export and import backup JSON files from the app menu. Health logs, routines and vet records are all preserved, so moving to a new phone does not cost you your history.

No, and it is not designed to. It is a tracking and educational tool. It does not diagnose or treat anything, and the value it adds at a vet appointment is the record you bring with you, not an opinion it forms.

On your device. There is no account, so there is no server-side profile of your dog to leak or sell. Backups are files you create and control.

The privacy page has the current policy and the detail on data handling, including exactly what the analytics on this website collect and how to opt out.

Yes. Breeders use it to track health, behaviour, vet visits and routines across their dogs. Good record-keeping supports responsible breeding and gives buyers something concrete to look at.

It prioritises health screening, welfare and breed standards. For this breed that means BAER testing for deafness and kidney screening at minimum, plus honesty about compulsive behaviour in the line, which has a documented heritable component. See the responsible breeding guide.

Yes, substantially. The UK has the Kennel Club Assured Breeder Scheme; the USA has state-by-state law alongside the AKC; Australia has the ANKC and state rules; New Zealand has the NZKC and its Code of Welfare; Europe works through the FCI and national clubs. Always check your national kennel club and local law rather than relying on a general guide.

Ask to see BAER test certificates for the litter, ask what kidney screening the parents have had, and ask directly whether any dogs in the line show significant tail chasing or spinning. A breeder who tests and is open about results is telling you something useful; so is one who is evasive. See the finding a responsible breeder guide.