Bloody urine is red, pink, or brown-tinged. This symptom is uncommon in dogs, but indicates potentially serious underlying diseases.

Bloody stool describes the presence of blood in feces and includes digested blood (melena) or undigested blood (hematochezia). Bloody stool is a non-specific symptom triggered by many conditions such as mild, dietary-induced colitis to emergency conditions such as parvovirus infection, hemorrhagic gastroenteritis, or bleeding disorders

Cyanosis in dogs is the blue to purple discoloration of mucous membranes (particularly gums) and/or skin caused by poor oxygenation of the tissues. Cyanosis is a medical emergency as it is linked to potentially life-threatening heart and respiratory system conditions

Canine bowel incontinence is the inability to control defecation. Incontinence is distinct from inappropriate elimination or house-soiling, in that the bowel movements occur without the dog’s awareness.

Blindness refers to loss of vision, either due to a problem within the eye itself, or within the nerves or brain affecting the processing of visual input from the eyes. Vision loss can affect one eye or both, and be partial or complete.

Abdominal distension is a symptom where a dog’s abdomen has increased in size. It may be focal, affecting only one small area, or generalized across the entire abdomen. 

Bad breath, known as halitosis, is a common condition in dogs which ranges in severity and is associated with a variety of underlying conditions.