Chronic stress, or a constant stress experienced over a prolonged period of time, can contribute to long-term problems for heart and blood vessels. The consistent and ongoing increase in heart rate, and the elevated levels of stress hormones and of blood pressure, can take a toll on the body.
Excess Tearing. The most common cause of tear stains in dogs is excess tearing or epiphora, which makes the hair and skin around the eyes damp. This can lead to the growth of bacteria and yeast. Red yeast, which produces a reddish brown discoloration of the face, is a common cause of tear stain problems.
Infected Tear Duct. Inflamed tear ducts, or dacryocystitis, is an inflammation of the tear drainage system in one or both eyes that cause excessive tearing, and sometimes redness and discharge despite there being no presence of allergies, cold, or other concerns.nfected Tear Duct. Inflamed tear ducts, or dacryocystitis, is an inflammation of the tear drainage system in one or both eyes that cause excessive tearing, and sometimes redness and discharge despite there being no presence of allergies, cold, or other concerns.