The Pyrenean Mountain Dog, which has an average lifespan of 10 to 12 years, may suffer from minor health problems like entropion, osteosarcoma, Osteochondrosis Dissecans (OCD), skin problems, cataract, chondrodysplasia, and panosteitis; it is also prone to serious problems like canine hip dysplasia (CHD) and patellar luxation. Sometimes the breed can be susceptible to spinal muscular atrophy, gastric torsion, and otitis externa. To identify some of these issues, a veterinarian may recommend regular hip, knee, and eye exams for the dog.