6. Breathing Problems. Respiratory distress, often called dyspnea, is labored, difficult breathing or shortness of breath. This can occur at any time during the breathing process, during inspiration (breathing in) or expiration (breathing out). When your dog has trouble breathing, he may not be able to get enough oxygen to his tissues. Additionally, if he has heart failure, he may not be able to pump sufficient blood to his muscles and other tissues. Dyspnea is often associated with accumulation of fluid (edema) in the lungs or the chest cavity (pleural effusion). This fluid can lead to shortness of breath and coughing. This is a very serious symptom and should be evaluated immediately. Click here to learn more.

7. Red Eye. A "red eye" is a non-specific sign of inflammation or infection. It may be seen with several different diseases including those involving different parts of the eye including the external eyelids, third eyelid, conjunctiva, cornea, and sclera. It may also occur with inflammation of the structures inside the eye, with glaucoma (high pressure within the eye) or with certain diseases of the orbit (eye socket). Either one or both eyes can become red, depending upon the cause of the problem. Some of the possible causes can be serious and ultimately cause blindness. Click here to learn more.
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8. Jaundice. Jaundice, also referred to as icterus, describes the yellow color taken on by the tissues throughout the body due to elevated levels of bilirubin, a substance that comes from the breakdown of red blood cells. There are several causes for jaundice and regardless of the cause, jaundice is considered abnormal and serious in the dog. Click here to learn more.

9. Trouble Urinating. "Trouble urinating" can include straining to urinate, frequent attempts at urination, and evidence of discomfort when urinating. Discomfort may be demonstrated by crying out during urination, excessive licking at the urogenital region or turning and looking at the area. There are several underlying causes. Some of the causes if left untreated can result in death in as little as 36 hours. Click here to learn more.

10. Urinating and Drinking Excessively. These signs are often early signs of disease including kidney failure, diabetes mellitus, thyroid gland problems, uterine infection (called pyometra), as well as other causes. Dogs normally take in about 20 to 40 milliliters per pound of body weight per day, or one to two cups per day for a normal sized dog. If you determine that your pet is drinking excessively, make an appointment with your veterinarian. Click here to learn more.