Unionville South Pet Hospital

4721 Highway 7 East
Markham, ON L3R 1M7



Veterinary Internal Medicine


This area of veterinary medicine is certainly one of the most diverse, interesting and challenging areas of medical sciences for our dedicated veterinarian, Dr. Dave S. Bonab. One can imagine with the large number of species, and different breeds of every species, along with the different tissues and organs comprising the bodies of these animals, it is one of the most demanding fields of medicine when it comes to accurately defining the abnormalities encountered. In the same manner, it requires veterinarians to apply deep understanding of this vast area of veterinary medicine to diagnose and treat diseases and illnesses effectively. Our veterinary hospital strives to effectively communicate with pet owners in the simplest language the details of our diagnostic and therapeutic procedures, so our clients feel completely comfortable with the thought process we have for every single case. We want to bridge the knowledge gap between veterinarian and client: no question is too simple!

We offer our veterinary internal medicine services to pet owners located in Ontario, Canada from Markham, Unionville, Stouffville, Richmond Hill, Scarborough and neighboring communities. Our veterinary team aims to keep our clients well informed, and completely satisfied with the plans of diagnostics and treatments we determine for their beloved pets.

Our veterinary team makes sure that our clients feel all their questions are answered before we start the procedures, and that the cost involved with every single procedure is well defined and agreed upon in advance. Our ultimate goal is to bring peace of mind to our clients, so that every single dollar you spend on the health and well-being of your pet(s) is in line with the plans we share with you.


There is a large number of common diseases seen in our pet population. Below, you will find a brief list of the most commonly encountered diseases.

  • Vomiting, diarrhea, loss or reduction of appetite, constipation, digestive enzymes insufficiency, intestinal parasites
  • Ear, eye infection, skin rashes, hot spots, skin infections, hair loss, itchiness and allergies, dry skin, greasy skin and dandruff, skin parasites, immune system disease
  • Oral and dental diseases including tartar buildup, loose or chipped teeth, painful teeth, tooth root abscess and oral tumors
  • Heart disease, respiratory diseases including bacterial and viral infections, asthma and bronchtis
  • Chronic and acute kidney disease ad insufficiency, urinary tract diseases and infections, liver disease and insufficiency, biliary tract diseases
  • Hyperthyroidism, hypothyroidism, Cushing’s disease, diabetes and Addisonian disease
  • Orthopedic diseases including arthritis, cruciate ligament and tendon injuries, hip dysplasia, fractures, dislocations, disc disease, nerve damage, spinal cord damages and epilepsy
  • Emergencies such as blocked male cats, hit by cars, toxications and poisoning, wounds and severe acute allergic reactions