Bulldog

Pinschers & molossoids

Medium

Median 9.8 y

FCI group 2 · Pinscher and Schnauzer, Molossoid and Swiss Mountain Dogs · Derived from the adult weight midpoint (26 kg)

Median survival across 15,808 UK dogs (VetCompass, McMillan 2024) · half live 7–12 y

The Bulldog is a British breed of dog of mastiff type. It may also be known as the English Bulldog or British Bulldog. It is a stocky, muscular dog of medium size, with a large head, thick folds of skin around the face and shoulders and a relatively flat face with a protruding lower jaw.

Calm

Courageous

Friendly

Summary from Wikipedia (CC BY-SA) · reference ranges from the Kintail breed dataset

Adult weight

Reference

Male

23–32.2 kg

Female

20.2–28.4 kg

Typical of real dogs — VetCompass UK, n=1,352, mean ±1 SD

Weight for age

Stock data

Male

Female

Expected range

Expected range from the breed's own adult weight, kilograms. Growth reference: Salt et al. 2017, WALTHAM (15–30 kg band).

Heat cycles · females

Stock data

First heat

8–12 mo

typical

Interval

180 d

typical

Bleeding

~9 d

typical

Proestrus 9d

Estrus 9d

Diestrus 52d

Anestrus 110d

General figures for dogs, not for this breed — individual cycles vary widely.

Questions people ask

Adult males usually weigh 23–32.2 kg and females 20.2–28.4 kg. Most are close to their full size by around 15 months, though the last little bit of filling out takes longer. Growth reference: Salt et al. 2017, WALTHAM (15–30 kg band).

No Bulldog cycle figures are published here yet, so this is general guidance rather than a breed number: most females have a first season somewhere between six and fifteen months, and cycles then settle to roughly every 180 days. Smaller breeds tend to start earlier and larger ones later.

The median is 9.8 y. Median survival across 15,808 UK dogs (VetCompass, McMillan 2024) · half live 7–12 y. How the later years go comes down to weight, teeth, exercise and regular check-ups far more than to the breed.