Preparing Your Pet for Surgery: What to Expect
Learn why pets are dropped off early on surgery day and what happens before, during, and after the procedure to keep them safe, comfortable, and well monitored.
Dr. Sofia Raldiris
DVM

🩺 PREPARING YOUR PET FOR SURGERY: WHAT TO EXPECT
Whether your pet is having a routine spay/neuter or a more involved procedure, careful preparation, anesthesia, and monitoring help keep your pet safe and comfortable.
BEFORE SURGERY
Follow Fasting Instructions
Unless instructed otherwise, no food, treats, or water after midnight.
Follow the fasting instructions provided by the veterinary team. These instructions may vary depending on your pet’s age, health, medications, and scheduled procedure.
Give Medications Only As Instructed
Inform the veterinary team about all medications and supplements your pet receives.
Some medications may need to be adjusted or withheld before anesthesia.
If medication must be given with food, use only a small amount as directed by the veterinary team.
Pre-Visit Sedation
Pre-visit sedation can be especially helpful for anxious, fearful, or aggressive pets, particularly cats.
A strange environment, handling, and being placed in a kennel can be overwhelming.
The veterinary team may recommend trazodone or gabapentin to help your pet relax. Think of it as a "chill pill," not a medication intended to knock them out.
Depending on the medication, it may be given:
- The night before.
- About 2 hours before leaving for the hospital.
- Every 8–24 hours as directed.
Do not wait until arriving at the hospital to give the medication. Your pet may already be too stressed for it to work as well.
A calmer pet means less stress, less struggling, and safer handling.
Pre-Existing Medical Conditions
Inform the veterinary team about any pre-existing medical conditions, allergies, or previous reactions or complications involving anesthesia or medications, even if they seem unrelated to surgery.
Let the veterinary team know if your pet is sick before surgery, including vomiting, diarrhea, coughing, sneezing, lethargy, or other signs of illness. Surgery may need to be postponed for safety.
🏥 WHY ARRIVE SO EARLY?
Why drop your pet off at 8 a.m. if surgery isn't until later?
It's a fair question!
Early admission gives the veterinary team enough time to prepare your pet carefully, without rushing, while allowing them to settle into the hospital environment. This helps ensure a safer, more comfortable experience before anesthesia.
Most importantly, early admission allows time for appropriate monitoring throughout recovery, helping ensure your pet is stable, comfortable, and ready to go home.
Your pet's care involves more than the procedure itself. Every patient needs individualized preparation, anesthesia, pain management, and monitoring.
⭐ Early Drop-Off = More Time for Safety, Preparation & Personalized Care
The surgery may happen later in the day, but your pet's care begins the moment they arrive at the hospital.
WHAT HAPPENS AT THE HOSPITAL?
Once your pet arrives, the veterinary team will:
- Perform a complete pre-surgical physical examination.
- Perform pre-anesthetic blood work, when indicated, to evaluate organ function and identify potential risks.
- Review your pet's medical history and medications.
- Create an individualized anesthesia and pain-management plan based on your pet's age, weight, health, and procedure.
- Place an IV catheter and calculate appropriate fluid rates and medication doses.
- Prepare the appropriate breathing equipment and endotracheal tubes.
- Administer pre-anesthetic medications and allow enough time for them to take effect, providing sedation and pain control for a smoother, safer anesthesia experience.
- Monitor your pet for any unexpected or adverse reactions before proceeding with surgery.
- Postpone or stop the procedure if a significant reaction or unexpected concern occurs, to protect your pet's safety.
DURING THE SURGERY
Once your pet is safely anesthetized, the veterinary team will:
- Place the breathing tube and administer oxygen and inhalant anesthesia.
- Carefully prepare and disinfect the surgical area.
- Continuously monitor vital signs, including heart rate, breathing, oxygen levels, blood pressure, and temperature.
Believe it or not, the procedure is often the shortest part of the whole process.
AFTER SURGERY
Your pet is closely monitored throughout recovery. The veterinary team stays with them until they are awake enough for the breathing tube to be safely removed and continues monitoring until they are stable.
Before going home, the veterinary team will:
- Assess recovery and comfort.
- Provide an appropriate E-collar/cone when needed.
- Prepare and review go-home medications and instructions.
- Explain what to expect during recovery and when to contact the veterinary clinic.
🏠 RECOVERY AT HOME
Most pets go home the same day with instructions for:
- Rest and activity restriction
- Medications and pain control
- Feeding and water instructions
- Incision care
- E-collar use
- Follow-up appointments
For the first few days, keep your pet quiet and restrict activities such as running, jumping, climbing stairs, and rough play, as instructed by the veterinary team. Prevent licking or chewing at the incision.
🛡️ E-COLLAR: WHY IT'S ESSENTIAL!
Sutures and surgical glue do not prevent your pet from damaging the incision.
Licking, chewing, or scratching can damage the incision, introduce bacteria, reopen the wound, and lead to complications requiring additional treatment or surgery.
⚠️ Even brief licking can cause complications and increase veterinary costs. An e-collar (cone) is strongly recommended after surgery to prevent access to the incision.
- Keep it on at all times for 10–14 days, or as directed by the veterinary team.
- Your pet may feel uncomfortable or panic at first, but most pets adjust to the e-collar within a few hours.
- You may remove it briefly for meals and drinking if you supervise your pet closely and ensure they cannot reach the incision. Replace it immediately afterward.
- Never leave your pet unattended without the e-collar.
📏 How to Measure an E-Collar
The cone must extend beyond your pet's nose to prevent access to the incision.
- Length: With the cone positioned at the base of the neck and pushed all the way back, your pet's nose should not extend beyond the cone's outer edge.
- Fit: It should be secure enough that your pet cannot slip out, with room for approximately two fingers between the collar and neck.
- Test: Watch your pet move to ensure they cannot reach the incision.
⚠️ If your pet's nose extends beyond the cone's edge, a longer size is needed.
🐾 E-Collar Options
- Traditional plastic cone: Preferred because it provides reliable protection when properly fitted.
- Soft cone: Flexible, but some pets can bend it or reach around it to lick the incision.
- Inflatable collar: May be more comfortable but may not prevent your pet from reaching the surgical site.
- Recovery suit: May be suitable for certain incisions but does not replace an e-collar in every situation.
🩺 AFTER-SURGERY RECHECK
A recheck 10–14 days after surgery is recommended, even if your pet does not have visible sutures that need to be removed.
At this visit, the veterinary team will:
- Check the incision to make sure it is healing properly.
- Look for any signs of infection, swelling, or other complications.
- Remove any sutures that require removal.
- Confirm that it is safe to stop using the e-collar and gradually return to normal activity.
🚨 CONTACT YOUR VETERINARIAN IF YOU NOTICE:
- Significant bleeding or discharge from the incision
- Increasing redness, swelling, or opening of the incision
- Persistent vomiting or diarrhea
- Difficulty breathing
- Severe or uncontrolled pain
- Extreme weakness or difficulty waking
- Refusal to eat or drink, or inability to keep food or water down
- Any sudden or concerning change in your pet's condition
⚠️ Never give human pain medications or other medications unless specifically instructed by a veterinarian.
BEFORE YOU LEAVE
Make sure you understand:
- Which medications to give and when
- How much to feed, when to feed, and whether your pet should receive dry or wet food
- What activity is allowed
- How to care for the incision
- When your pet needs a recheck
- Which signs require immediate veterinary attention
A clear recovery plan helps you feel comfortable and prepared.
Follow the veterinary team's instructions carefully, and contact the veterinary clinic if questions or concerns arise during your pet's recovery.
🛒 RECOMMENDED SURGERY CARE PRODUCTS
The right supplies can help make your pet's recovery more comfortable and support safe healing at home. The following surgery care products may be helpful during your pet's recovery.
🌐 View Recommended Surgery Care Products
Remember: These products are intended to support your pet's recovery but do not replace the post-operative instructions provided by the veterinary team. If you have concerns about your pet's recovery or incision, contact your veterinary clinic.
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