Rat Terrier Health Guide

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Understanding the health profile of the Rat Terrier helps owners make informed decisions about screening, insurance, and preventive care. Like many pedigree breeds, the Rat Terrier is prone to certain hereditary and acquired health conditions, most notably Patellar Luxation and Hip Dysplasia. Lifespan varies considerably — from 12 to 18 years — and is strongly influenced by diet, weight management, and early veterinary screening. Smaller breeds often enjoy longer lifespans but can be prone to dental disease and patellar luxation; regular dental care and weight monitoring are particularly important.

Lifespan 12–18 years
Documented Conditions 4
Size Category small
Group Terrier

Conditions Affecting Rat Terriers

  • Hip Dysplasia High Risk Hereditary
    Category: Orthopedic Typical onset: 1-2 years Est. treatment cost: £1,500-£6,000

    Hip dysplasia is a genetic condition where the hip joint doesn't develop properly, causing the ball and socket to not fit together correctly. This leads to joint deterioration, pain, and arthritis over time.

    Key symptoms: Difficulty rising · Reluctance to jump · Bunny-hopping gait · Loss of thigh muscle · +1 more
    Full details, symptoms & treatment
  • Patellar Luxation Moderate Risk Hereditary
    Category: Orthopedic Typical onset: 4 months - 6 years Est. treatment cost: £1,500-£3,500

    Patellar luxation occurs when the kneecap slips out of its normal groove in the femur. It can be medial (inward) or lateral (outward) and ranges from grade 1 (occasional slipping) to grade 4 (permanent dislocation).

    Key symptoms: Intermittent skipping on hind leg · Sudden leg lifting · Bunny-hopping · Hind limb lameness · +1 more
    Full details, symptoms & treatment

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