American Hairless Terrier

Terrier

Small

10–12 y

AKC Terrier group · Derived from the adult weight midpoint (9.1 kg)

Wikidata (CC0) · no measured cohort for this breed

The American Hairless Terrier is a breed of companion dog from the United States that was developed from naturally hairless Rat Terriers.

Energetic

Alert

Curious

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

Adult weight

Reference

Male

5.4–12.7 kg

Female

5.4–12.7 kg

Breed club figure (the American Kennel Club)

Varieties

Reference

Hairless

Small build

5.4–12.7 kg

30.5–40.6 cm

The AKC standard describes two varieties, hairless and coated, judged to one size; same size as the parent — coat only; one range for both sexes

Coated

Small build

5.4–12.7 kg

30.5–40.6 cm

The AKC standard describes two varieties, hairless and coated, judged to one size; same size as the parent — coat only; one range for both sexes

AKC divides this breed by coat and face. The varieties are the same size — the coat is the only difference.

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 (9–15 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 5.4–12.7 kg and females 5.4–12.7 kg. Most are close to their full size by around 18 months, though the last little bit of filling out takes longer. Growth reference: Salt et al. 2017, WALTHAM (9–15 kg band).

No American Hairless Terrier 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.

10–12 y — the usual range. Wikidata (CC0) · no measured cohort for this breed. How the later years go comes down to weight, teeth, exercise and regular check-ups far more than to the breed.