Are Japanese Chins prone to cancer?

Overall, Japanese Chins don’t have a high predisposition to cancer compared to some other breeds. Although, like all dogs, they can develop cancer as they age. Common cancers that may affect aging dogs include lymphoma, mast cell tumors, and hemangiosarcoma, among others. 

However, male Japanese Chins are prone to cryptorchidism, a condition where one or both of the testicles fail to descend into the scrotum. Cryptorchidism can lead to various health issues, including an increased risk of testicular cancer.

Annual or bi-annual vet check-ups are important for early detection and treatment of any potential health issues, including cancer.