Summary

FSF stands for "Familiar Shar Pei Fever". It's also referred to as "Swollen Hock Syndrome", as, during bouts, the Shar Pei will exhibit swollen hocks. We have highlighted one of two "hock" in the picture below.

It's not a condition that can be screened. However, we still recommend you use the most ethical, knowledgeable breeder if you decide to purchase a Shar Pei instead of re-homing one. Please report all illegal Sharpei breeding operations to your local authorities.

One in four (25%) of Shar Pei dogs are affected by the condition.

Veterinarians believe that the disease occurs due to an abnormal immune function. They are, however, sure that it is a hereditary disorder that affects both genders, usually before age 6. Research is ongoing.

Being affected by FSF causes the Shar Pei to experience relatively frequent (think every three months) inflammation and fever. One or both hocks can be affected during each "bout".

In addition to the larger than usual hocks, during a bout, Shar Peis may present:

🡲 Signs of a fever (anything above 39.4°/103°F) coming and going between 12 and 72h (usually 24 to 46h)

🡲 Lowered appetite

🡲 Lethargy

🡲 Visibly painful movements (manifested by the dog refusing to sit or taking a long time to circle while attempting to sit)

🡲 Modification to the appearance of the snout

🡲 Due to the inflammation's pain, the hind (rear) legs may be stiffening