Always The Best

Caring for all pets and families.



Portrait of a kind cat with big eyes, close up.
Our doctors have been working in veterinary medicine for over 20 years and strive to provide a comfortable and stress-free procedure and environment for our patients. Our staff are trained in veterinary nursing and work closely with the veterinarians to oversee anesthetic monitoring with advanced EKG and vital sign monitoring equipment.

Our surgery suite at Oso Pet Care Center is fully equipped to handle almost any surgical need. These anesthetic procedures include laproscopic procedures, orthopedics, soft tissue, oncological procedures, routine spay and neuter, stem cell (harvest and implant).

Preventative Medicine and Geriatric Care

We want to help you pet before there's a problem. We offer annual wellness exams, vaccinations, flea control and preventatives, internal parasite testing, and heartworm prevention.

If your pet suffers an accident or illness seek professional veterinary help immediately. Lower the chances of complications and suffering by addressing your pet's medical issues as they arise. Waiting can only result in unnecessary worry, deterioration of health status, and make recovery more difficult.

Understand your senior pet's needs by consulting with the veterinarian during a senior wellness exam. Older patients may be dealing with difficulty hearing or seeing, arthiritic pains, internal organ failure, lack of proper nutrition, and thyroidism. Seek medical attention when these problems arise for helpful treatments of these health issues.

Internal Medicine

portrait of a beautiful cat
  • Cardiology (ECG, Blood Pressure)
  • Digital Radiology
  • Dermatology
  • Non-Anesthetic Dental
  • Anesthetic Dental Prophylaxis
  • Ophthalmology
  • Ultrasound
  • Endoscopy

Dental Care

Dental health is a very important part of your pet’s overall health, and dental problems can cause, or be caused by, other health problems. Your pet’s teeth and gums should be checked at least once a year by your veterinarian for early signs of problems and to keep your pet’s mouth healthy. Have your pet’s teeth checked sooner if you observe any of the following problems:
  • Bad breath
  • Broken or loose teeth
  • Extra teeth or retained baby teeth
  • Teeth that are discolored or covered in tartar
  • Abnormal chewing, drooling, or dropping food from the mouth
  • Reduced appetite or refusal to eat
  • Pain in or around the mouth
  • Bleeding from the mouth
  • Swelling in the areas surrounding the mouth
Some pets become irritable when they have dental problems, and any changes in your pet’s behavior should prompt a visit to your veterinarian. Always be careful when evaluating your pet’s mouth, because a painful animal may bite.

Minimally Invasive Surgery

We Provide Advanced Dog And Cat Surgery At OSO Pet Care, we have a fully-equipped pet surgery center with an experienced veterinary surgical team. We are also one of the few animal hospitals in the United States that offer such technologically advanced, minimally-invasive endoscopic animal surgery techniques. In fact, the equipment we use is the same type used at human hospitals. Our equipment and skills make it possible for us to do the same surgeries with tiny incisions that are typically done with long incisions. We can accomplish dog surgery and cat surgery with less pain, more precision, and shorter healing times. That means your pet can feel better faster.

Here are our surgeons, Dr. Han And Dr. Park performing a laparoscopic spay and gastropexy. OSO Pet Care is one of few clinics on Orange County that have the capabilities to perform a laparoscopic spay and gastopexy.

Our Minimally-Invasive Animal Surgery

Our OSO Pet Care surgery team provides laparoscopic surgery. This means that instead of making a long incision to do an abdominal pet surgery, we make two or three very small incisions of no more than a centimeter. Then we insert a tiny camera attached to a long rod into the surgical area. This camera displays a sharp, magnified image of the surgical area onto a television screen. This is an even better image than we would be able to see with our own eyes and a large, open incision.

There are several advantages to minimally invasive dog surgery and cat surgery. Because the incisions are so small, they cause less pain and heal faster. It is also easier for pet owners to keep the smaller surgical wounds clean at home than the bigger ones. This leads to fewer post-surgical complications such as infections. Laparoscopic pet surgery also disturbs fewer of your pet's internal organs and structures to accomplish the same surgical goals. That means there are fewer complications during surgery, again, leading to faster recovery time for your pet.

We offer many types of laparoscopic animal surgery procedures, including minimally-invasive spay and neuter surgeries. For years, most spay surgeries involved removing both the ovaries and the uterus. For both dog surgery and cat surgery, this often came with risks such as endometritis, pyometra, and urinary incontinence. Our procedure removes only the ovaries, greatly reducing the risks involved, as well as shortening the healing time. In fact, to reduce the need for more surgeries in large breed dogs, later on, we can also perform a gastropexy at the same time as a spay surgery. This procedure attaches the dog's stomach to the abdominal wall to prevent twisting that could lead to deadly intestinal blockages.

The benefits of smaller incisions and fewer disturbances to other tissues also extend to other types of surgery as well.

Call us at (949) 272-2233 for more information about our minimally-invasive surgeries for pets.

Surgical information packet
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A Valuable Pet Wellness ToolPets, particularly dogs, tend to "follow their nose" in more ways than one. At various times a dog's nose may be wedged into the dirt, inhaling grass clippings, or pushing its way through a bowl of food. It's not surprising, then, that a dog's nose may collect foreign matter deep in the airway, causing breathing troubles, sneezing fits or bleeding. These extensive nasal passages may also develop tumors, fungal issues, internal inflammation or some other serious threat to the pet's wellness. To help view the interior of a pet's nose safely and accurately, Our Hospital uses an advanced diagnostic technique known as rhinoscopy.

Rhinoscopy involves the use of a device called an endoscope. This length of tubing is introduced into the nasal passages under general anesthetic, which is necessary to prevent the pet from sneezing due to the resulting nasal irritation. The pet is also intubated through the mouth to prevent choking on any food or other matter that might otherwise enter the airway. The tubing of the endoscope is hollow, allowing a tiny camera to view interior details of the nasal passages. This visual information is then relayed to a monitor so the veterinarian can spot any abnormalities or foreign bodies lurking within.

It can also reveal the presence of an internal inflammation or infection. The rigid endoscope houses delicate surgical tools that can extract blades of grass, bits of trapped food, or suspicious growths that need to be biopsied for the sake of the animal's wellness.

Trust The Caring Professionals At Our OSO Pet Care

Pet owners may need to schedule a rhinoscopy if their pets suffer from unexplained nosebleeds or other discharges, constant sneezing or obvious respiratory problems. The veterinarians at our OSO Pet Care -- Drs. Han and Park -- will evaluate the pet's general wellness, veterinary history, and current symptoms before confirming the advisability of the rhinoscopy.

While some bleeding from the nose, a part of the body filled with tiny blood vessels, is to be expected, this bleeding is easily controlled. The procedure itself only takes a few minutes to complete in most cases. If your pet does require a rhinoscopy, he should recover easily and quickly enough to come home with you the same day, although sometimes an overnight stay is recommended. If a sample is taken to the lab for biopsy, we will inform you of our findings as soon as possible. If your pet is suffering inflammation of one or both nasal passages as the result of an infection or allergy, we will recommend the appropriate course of treatment to get the condition under control. We encourage anyone whose pet suffers from sneezing or unusual nasal discharges to contact our Hunt Valley veterinary office for an appointment.

Laparoscopic Spay

Minimally invasive surgical treatments (i.e. endoscopy) have dramatically advanced patient care for people and animals. When compared to surgical procedures, endoscopic approaches are associated with:

  • Fewer complications during recovery after surgery
  • Less surgical stress to the body via tissue damage
  • Decreased need for pain medication (up to 65% less in a study on dog spays)
  • Less time spent hospitalized
  • Faster return time to normal body functions and normal activity
Ovariohysterectomy, commonly known as a spay, is the most common elective procedure performed in small animal practice. Millions of spays have been completed using a surgical technique that has been modified little since the time of James Harriot in the 1930s. Instead, the major improvements in the last 75 years have been in the areas of aseptic technique, general anesthesia, suture material and placement, and more recently, pain recognition and management. Now the surgery itself is being transformed with the use of endoscopic cameras and instruments that improve visualization and decrease surgical trauma.

OSO Pet Care has been offering these minimally invasive procedures for many years and is currently one of just a handful of veterinary hospitals in the United States that is performing this advanced spaying technique. We know how important it is to spay cats and dogs and we work diligently to make the process as anxiety and pain-free as possible for our patients. We are proud to achieve some of the most comfortable surgical recoveries in the profession and we continually work to improve our pain management as new techniques and medications become available.

Performing spays laparoscopically is a historical advancement in the goal of reducing post-operative discomfort in dogs and cats and we are proud to be able to

Traditional Spay

  • 2” – 4” Incision
  • Pain & Bruising from Blindly Tearing Ovarian Ligament
  • Post-Operative Pain
  • Open Surgical Procedure
  • Possible

Laparoscopic Spay

  • Two 1/2” Incisions
  • Up to 65% Less Post-Operative Pain
  • Minimally Invasive Technique which reduces the chance of infection
  • Faster recovery to a normal lifestyle
Here are our surgeons, Dr. Han and Dr. Park performing a laparoscopic spay and gastropexy. OSO Pet Care is one of few clinics in Orange County that have the capabilities to perform a laparoscopic spay and gastropexy since 2007.

"We recently adopted a standard poodle puppy and when it came time to spay her we investigated endoscopic and gastropexy thoroughly. We made the decision to allow Dr. Han to perform both procedures on our poodle "Deja Vu". We have been thrilled by her quick recovery as well as the service at OSO Pet Care EVERYONE IS AMAZING!!! The best news is that we have eliminated the torsion issue in the future for our baby girl as it seems not only Standard Poodles but many other large chested breeds are lost to this horrible condition daily. Our thanks and appreciation to Dr. Han and his wonderful staff." -Toni and Bruce Faber & "Deja Vu"


Gastric Dilation Volvulus (GDV) Or Bloat Gastric dilation volvulus (GDV) or bloat is a common LIFE-THREATENING condition that affects many large breeds and deep-chested dogs. This condition involves distension of the stomach, usually with gas, and then, the stomach twists on itself. The twisted stomach cannot pass food into the intestines and is not able to allow the dog to vomit or get rid of excess air by belching. The consequences of this condition can be fatal and include heart arrhythmia and twisting of the spleen. Shock, coma, and death can occur within 6-12 hours.

A Few Of The Most Common Symptoms
  • Anxiety/Restlessness
  • Tight abdomen
  • Gagging/Retching without producing anything
  • Drooling
  • Rapid heartbeat
  • Pale gums
A List Of The Most Common Breeds Affected By GDV Is Your Beloved Pet On The List?
  • Akita
  • Basset Hound
  • Bernese Mountain Dog
  • Bloodhound
  • Borzoi
  • Boxer
  • Bullmastiff
  • Chow
  • Doberman Pincher
  • German Shepherd Dog
  • Golden Retriever
  • Great Dane
  • Great Pyrenees
  • Irish Setter
  • Irish Wolfhound
  • Labrador Retriever
  • Newfoundland
  • Old English Sheepdog
  • Rottweiler
  • Standard Poodle
  • St. Bernard
  • Weimaraner


  • Avoid elevated food bowls
  • Never feed your dog immediately before or after heavy training, play or exercise. Try to wait at least 2-3 hours after feeding. Follow these same guidelines after bringing your dog home from a veterinary visit or kennel stay
  • Dogs should always be fed at least 2 small meals per day, rather than one large meal
  • Do not allow your dog to drink or gulp large amounts of water after eating
Why wait until a LIFE-THREATENING and very expensive condition has occurred? A preventative, minimally invasive procedure is becoming the standard for your pet and can save his/her life! Gastropexy involves tacking the stomach to the body wall within the abdomen to prevent its ability to twist on itself if the stomach does fill with air or food. This procedure is performed using minimally invasive laparoscopic techniques. The benefits of laparoscopic gastropexy include shorter surgery/anesthesia time, small incisions, less pain, and shorter recovery/hospital stay.

Cryptorchid Neuter

Most male puppies will have both testicles descended by the recommended neuter age of six months. However, a small percentage of male puppies have either one or both testicles retained within the groin or abdominal cavity (cryptorchid). Previous surgical techniques to remove the undescended testicle involved a blind search and prolonged anesthesia time. Laparoscopic-assisted cryptorchid neuter surgery provides a significant improvement in surgical technique for this condition.

  • Better visualization of abdominal organs means an easier location of the retained testicle
  • Shorter anesthesia and surgery time
  • Smaller incisions mean less pain
If you live in the Orange County area and would like to get your dog or puppy neutered, but either one or both testicles are retained within the groin or abdominal cavity (cryptorchid), call OSO Pet Care today at (949) 272-2233. Our knowledgeable veterinarians will be able to answer all your questions and help you choose the right neutering procedure for your dog or puppy.

CT Imaging

CT imaging is one of the best tools for studying the chest and abdomen because it provides detailed, cross-sectional views of all types of tissue. It is often the preferred method for diagnosing many different cancers, since the image allows a veterinarian to confirm the presence of a tumor and measure its size, precise location and the extent of the tumor's involvement with other nearby tissue. Additionally, it is invaluable for diagnosing and treating spinal problems, brain and even limping because it can clearly show small bones as well as surrounding tissues. Veterinary radiologists often use CT to diagnose abnormal blood vessels in the liver, disorders in the abdomen, orthopedic disease, and to plan proper radiation treatment for tumors. Onsite CT is available through mobile animal CT.


At OSO Pet Care our approach to pet wellness includes a blend of modern-day veterinary techniques. One cutting-edge technique we use in diagnosing urinary wellness is cystoscopy. This minimally-invasive procedure, which is performed under anesthesia, involves threading a thin tube which has a light and camera on the end, through your pet’s urethra, and into its bladder.

Before the procedure, we will perform blood tests and other analyses to gauge your pet’s ability to tolerate the anesthesia. It is generally recommended that your pet refrains from eating for at least twelve hours prior to the procedure. The cystoscopy is performed in the relaxed surroundings of our veterinary facility. Once your pet is comfortably sedated we fill her bladder with a sterile saline solution. This inflates the bladder to a point where we can insert the scope through the urethra and inspect it for any abnormalities, stones, lumps or masses.

We carefully monitor your pet’s vital signs at all stages of the procedure. Cystoscopy allows for magnification, so our veterinarian can get an in-depth picture of how well your pet’s bladder is functioning. We often take photos or video for further study. During the procedure, our veterinarian may also obtain tissue samples for further evaluation or place a catheter to help in the flow of urine. The total time is about twenty minutes to an hour, depending on what we encounter.

After the cystoscopy, your pet will stay at our animal hospital for a short period of observation. We may release your pet that day or the next, depending on how well your pet responds to the anesthesia. Your pet will experience minimal discomfort and should be able to resume normal activities. If you do notice any unusual symptoms be sure to contact us immediately.

We Can Pull Out Blander Stone Without Cutting Bladder!
Most female dog, we have been successfully removed bladder stone without cutting bladder wall which makes faster recovery time, most of them back to normal themselves by end of the day.

Veterinary Services For Your Pet’s Urinary Health
Your pet’s ability to properly process and dispose of waste is crucial to its overall wellness. That is why our animal hospital offers cystoscopy as one of our veterinary services. This procedure allows our veterinarian to look for polyps or tumors and urethral stones, as well as diagnose the cause of any urinary tract infections.

The major symptoms which may prompt us to recommend a cystoscopy are blood in your pet’s urine, straining to urinate, persistent discharge, bladder stones, and urinary incontinence. If you or our doctors notice any of these symptoms a cystoscopy may be used to aid in the diagnosis process and uncover any underlying medical abnormalities. Our doctor may also want to further examine any masses that are detected during the annual examination or through X-rays or Ultrasound. Depending on the results our doctor may recommend medication, a pet surgery, or possible collagen implants to help reduce the potential for urinary incontinence. If your pet experiences urinary difficulties, turn to the professionals at OSO Pet Care, with over combined 30 years of superior client service and compassionate care for your pet.


Pet owners are increasingly concerned with the quality of medical care they can find.

In many cases, they expect the same sophisticated diagnostic and surgical techniques for their animals that are available to humans.

Every improvement in diagnostic and therapeutic technique – particularly those that minimize trauma, and return animals more rapidly to normal health – represents progress for the welfare of both animals and people.

OSO Pet Care offers endoscopy for all our patient who need as best quality medicine.