Hi stranger! Signing up for MypetMD is easy, free and puts the most relevant content at your fingertips.

Get Instant Access To

  • 24/7 alerts for pet-related recalls

  • Your own library of articles, blogs, and favorite pet names

  • Tools designed to keep your pets happy and healthy

or Connect with Facebook

By joining petMD, you agree to the Privacy Policy.

PetMD Seal

Anemia, Regenerative in Cats


Regenerative Anemia in Cats


Regenerative anemia occurs when the body loses blood faster than it can be regenerated, despite the fact that red blood cells are being produced in the bone marrow.  


Symptoms and Types


  • Pale gums
  • Pale eyes and ears
  • Weakness
  • Rapid heart beat
  • Depression
  • Sleeping more than normal
  • Failure to groom
  • Weak appetite
  • Excessive panting
  • Heart murmur
  • Hemolytic anemia:
    • Yellow gums
    • Yellowing of whites of eyes



  • Parasites (worms)
  • Fleas
  • Wound
  • Cancer
  • Non-steroid anti-inflammatory drugs (NSAIDS), such as aspirin and ibuprofen
  • Hemolytic anemia, which can be due to :
    • Ingestion of toxic materials
    • Ingestion of pennies
    • Ingestion of onions and/or acetaminophen
    • Bacterial and viral infections
    • Defective red blood cells
    • Autoimmune disease
    • Parasites of the blood




  • Complete blood test (CBC)
  • Packed cell volume test (PCV)
  • Urinalysis
  • Bone marrow aspirate





Related Articles

Anemia, Nonregenerative in Cats

A decrease in red blood cells is referred to as anemia. Typically, bone marrow will respond to this loss by increasing red blood cell production....

Parasitic Blood Infection (Haemobartonellosis) in Cats

The mycoplasma is a class of bacterial parasite that lacks cell walls and are able to survive without oxygen, making them resistant to antibiotics....

Anemia Due to Iron Deficiency in Cats

When the body is deficient in iron, red cells do not develop as they should. In adult pets, this condition is usually caused by some kind of...

Anemia Due to Red Blood Cell Damage in Cats

Anemia due to red blood cell damage in cats can occur as a reaction to certain medications, or as a result of eating onions. Learn more about...