Other

Lymphadenopathy is enlargement of the lymph nodes, and is a common finding in many diseases, illnesses, and conditions.

Yellow eyes, ears, or skin on a cat is called jaundice, or icterus. It is associated with liver damage and damage to red blood cells.

Muscle tremors are involuntary movement of the muscular tissue, often appearing similar to shivering or trembling. This symptom is not common in cats.

Exercise intolerance is a decreased ability to endure sustained exercise.

Any illness or injury can lead to weight loss, if the condition is severe enough to decrease appetite or if it increases metabolism. Numerous diseases ranging from cancers to parasitic infections cause unexpected weight loss, even without a change in the dog’s appetite.

Reverse sneezing in cats is an involuntary reflex involving rapid, forceful inhalation of air. As with normal sneezes, reverse sneezes are the body’s mechanism for clearing an irritant out of the area near the soft palate.

Subcutaneous lumps are found under the skin, rather than within the skin or at the surface of the skin. If a lump does not create a visible mark or disruption on the skin, doesn’t arise from the bone, and the skin moves freely over it, it is a subcutaneous lump.

Undescended testicle(s), or cryptorchidism, is a failure of one (unilateral) or both (bilateral) of a cat’s testicles to properly settle into the scrotum during development.

Seizures result from abnormal electrical activity in the brain. Seizure activity varies from subtle staring to complete collapse and muscle spasms (convulsions).

Rapid and/or shallow breathing (tachypnea) in cats is rare and sometimes difficult to spot. Cats are masters at hiding signs of illness and often show no distress even when exhibiting potentially serious symptoms like tachypnea.

Exercise intolerance is defined as the decreased ability to tolerate strenuous exercise. Cats with exercise intolerance want to get up and play or run, but aren’t able to keep up without having difficulty.

Paralysis is the complete loss of the ability to move or feel a part of the body. It can affect any or all limbs of the body, the face, or the vocal cords. It may be acute or chronic.

Itchy skin, or pruritus, is a common symptom of multiple conditions. Scratching, rubbing, licking, and chewing are the most common signs shown by itchy dogs.

Difficulty breathing (dyspnea) is always cause for concern, so any dog who suddenly exhibits this symptom needs emergency medical care. Many conditions can cause dyspnea,

Collapse is the inability to maintain a normal, standing posture, and is a rare symptom in cats. Cat owners may see their cat suddenly fall or intentionally lie down, then be unable to stand up.

The sensation of itchiness (pruritus) in a cat can be caused by many things, most often fungal infections (ringworm), parasites (like fleas or mites), and allergies (to food, fleas, or airborne particles). 

A seizure is an abrupt episode of uncontrollable muscle activity and is the physical manifestation of abnormal electrical discharges in the brain. 

Increased thirst, or polydipsia, is a common symptom of many conditions in dogs.

Muscle swelling can be defined as any abnormal increase in size of muscle tissue.

Coughing is a common symptom observed in dogs. It can be caused by a multitude of conditions. Some common causes of coughing include bacterial, fungal, and viral infections

Swollen toes (paw pads) are rare in cats, but may be a symptom of significant underlying disease

Difficulty swallowing, or dysphagia, is rarely observed in cats.

A stroke, or cerebrovascular accident, in cats refers to a disruption of blood flow within the brain, preventing oxygen delivery to the tissue.

Canine hyperthyroidism results from the excessive production of thyroid hormones due to a functional thyroid gland tumor.

Dementia, or Cognitive Dysfunction Syndrome (CDS), is an age-related degenerative disease which affects memory and learning in dogs. Dogs with CDS present with a wide variety of progressive symptoms, including disorientation, anxiety, abnormal interactions, disturbances in  sleep/wake cycle, learning or memory changes, house soiling, and changes in activity levels.

Sneezing is the body’s natural way of responding to irritants and inflammation by expelling air out the nose.

Sneezing is a common occurrence in dogs, and is not always indicative of a medical condition.

Pale gums are identified when the normal light pink color of the gum tissues turn pale or white, indicating a serious underlying condition.

Muscle atrophy describes the thinning or wasting of muscles. It is a common symptom in dogs, seen as part of many conditions.

Muscle tremors in dogs are involuntary, repetitive, rhythmic muscle movements.