Northeast backyard cats typically refer to cats bred in small, family-run households in Northeast China. This breeding method differs from that of formal catteries and may lead to health and genetic issues.
In addition, Northeast backyard cats are often resisted by animal protection organizations because non-professional breeders often blindly pursue breed characteristics and ignore the principles of scientific breeding. Their living environment is usually very poor, and there is often inbreeding, which leads to prominent health problems in newborn kittens.

However, not all backyard cats in Northeast China are like this; some family breeders are able to provide a relatively good living environment and pay attention to the health of their cats.