Purebred dogs often carry some hereditary weaknesses, making them more likely to suffer from one or more specific illnesses. The Pomeranian is a good example. It is small and cute, but especially prone to respiratory disease, cardiovascular disease, fractures, and catching cold.
Endocrine Imbalance
Pomeranians have relatively delicate bodily functions and can more easily develop endocrine imbalance, which may lead to skin inflammation. That is why owners should pay close attention to cleanliness, inspect the skin during bathing, keep the dog's bed neat and dry, and let the dog get some sunlight, since ultraviolet light can help reduce bacteria.

Catching Cold
Pomeranians can catch a cold quite easily, and one of the most common causes is getting chilled, especially after a bath if the coat is not dried promptly. When a Pomeranian has a cold, it should rest more and drink more water. Some owners also use mild cold remedies, but veterinary advice is safer.
Respiratory Disease
Many Pomeranians have some respiratory weakness. In middle-aged and elderly Pomeranians, tracheal collapse is especially common, and it is often accompanied by coughing. For that reason, older Pomeranians should exercise less than younger ones and should avoid excessive exertion. Because this tendency is partly congenital, it is difficult to prevent completely and can only be managed as well as possible.

Cardiovascular Disease
Female Pomeranians are prone to a condition known as patent ductus arteriosus, in which a blood vessel between the aorta and pulmonary artery remains abnormal and allows mixing of oxygen-rich and oxygen-poor blood during circulation.
Fractures
Pomeranians are a small breed with very fragile bones, especially in the front legs. Owners should be particularly careful when the dog is running and jumping and should avoid overly intense exercise. In daily life, a calcium-rich dog food, calcium tablets, or calcium powder may be used appropriately to support bone health.

These five common diseases are things many Pomeranian owners have encountered to some degree. Anyone considering raising a Pomeranian should understand these possible risks in advance and be mentally prepared for them.