
Arthritis
As you probably know (because this disease can occur in humans as well), arthritis is a disease caused by an inflammation of the joints, causing pain and discomfort.
The most common symptoms of arthritis are lameness, frequent colds, excessive licking in the joint areas, lethargy and anxiety. Arthritis can affect one or more joints, but it depends on your dog’s lifestyle and breed, so you have to seek the veterinary help to tell you which joints are affected and to give you the appropriate treatment.

Eye Infections
Some of the most common diseases that can put the life of your dog in danger are eye infections, such as conjunctivitis, jaundice, allergies, and fungal infections. There are a lot of factors that can lead to these diseases, from their hygiene and living conditions to their nutrition.
However, the most common symptoms of an eye infection include eye redness, swollen eyelids, eye discharge and rubbing at the eyes.
So, if you see something strange in your dog’s behavior, such as excessive rubbing at their eyes, sneezing, coughing, tearing eyes and so on, you should definitely talk to your veterinarian as soon as possible. Treatment may vary, from eye drops and creams to antibiotics.