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American Shorthair Health Problems

Research-backed content

American Shorthairs are one of the healthiest cat breeds, bred for centuries as working cats with good genetics.

American Shorthair portrait
Typical Lifespan
15–20 years
Size
Medium

American Shorthair Lifespan: What to Expect

American Shorthairs typically live 15-20 years, among the longest-lived breeds.

Average lifespan: 15-20 years

Genetic Factors

Excellent genetic diversity from working cat heritage. Few breed-specific issues.

Common Health Issues in American Shorthairs

Hypertrophic Cardiomyopathy (HCM)

Heart disease present in some lines, but less common than many breeds.

Symptoms to watch for:

  • Rapid breathing
  • Lethargy
  • Fainting

Obesity

Prone to weight gain, especially indoor cats.

Symptoms to watch for:

  • Excess weight
  • Decreased activity

Dental Disease

Common in all cats, manageable with care.

Symptoms to watch for:

  • Bad breath
  • Difficulty eating

Kidney Disease

Common in senior cats of all breeds.

Symptoms to watch for:

  • Increased thirst
  • Weight loss

Common Causes of Death

Understanding what American Shorthairs typically face helps you watch for warning signs and make informed decisions about their care.

  • Kidney disease (30%): Age-related in very senior cats.
  • Cancer (25%): Various cancers.
  • Heart disease (15%): HCM in some cats.
  • Age-related decline (20%): These cats live very long.

Warning Signs to Watch For

  • Weight gain
  • Increased drinking
  • Dental issues
  • Breathing changes
  • Behavior changes in seniors

Preventive Care

  • Weight management
  • Regular dental care
  • Annual senior bloodwork
  • Activity and enrichment

Sources

This information is compiled from veterinary research and breed-specific health studies:

  • https://cfa.org/american-shorthair/
  • https://icatcare.org/advice/american-shorthair/

American Shorthair Health FAQs

How long do American Shorthairs live?
American Shorthairs typically live 15-20 years. American Shorthairs typically live 15-20 years, among the longest-lived breeds.
What are common health issues in American Shorthairs?
The most significant health concerns for American Shorthairs include Hypertrophic Cardiomyopathy (HCM), Obesity, Dental Disease. Heart disease present in some lines, but less common than many breeds.
Is 15–20 years a normal lifespan for a American Shorthair?
American Shorthairs typically live 15-20 years, among the longest-lived breeds.