Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

My Cat’s Spay Incision Is Slightly Open, Should I Worry? Our Vet Explains

healing-spay-incision-after-neutering-female-cat

As a responsible cat parent, you know that spaying your cat is the right thing to do for her health and happiness, as well as to eliminate the risks of her becoming pregnant and adding to the number of cats needing homes. Knowing this doesn’t necessarily make it easy when the day comes to leave them at the veterinary hospital for their surgery, and when something goes wrong, you’re bound to panic.

As the most common surgery performed on female cats, there is always a chance of postoperative complications, but fortunately, they are relatively uncommon and almost always minor. Often, the biggest problem we see with cats after this operation is that they feel fine very shortly after surgery, and they don’t always rest up as much as we’d like, which can result in swelling or inflammation of their wound and could even cause the wound to open.

Sometimes, sutures might break and a cat’s spay incision will open up, even if they have been taking it easy, which will undoubtedly cause you to worry.

Here’s the good news: Your cat will almost certainly be just fine, but you do need to take them back to the vet.

divider cat paws 2 oct 2024

What Will Happen if My Cat’s Spay Incision Opens Up?

The first thing you’ll want to do is make sure your cat can’t lick the wound by placing a surgical collar, shirt, or onesie on your cat until you can get them to the vet. It would also be sensible to confine them, either to a very small area or in their pet carrier.

What happens next will depend on how recent the surgery was, what part of the wound has opened, and by how much.

If only the skin has opened up a tiny bit, the vet may just recommend that you prevent your cat from licking the wound and keep them confined until it heals. If the skin has opened more than 5 millimeters, or if the muscle layer has also opened, the vet may need to give your cat a sedation or anesthetic to clean and re-suture the incision, or they might just use skin staples to close the skin.

If your cat’s wound has become infected, it is likely that they will need antibiotics, and the incision may need to be cleaned and re-sutured.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

Why Would My Cat’s Spay Incision Open?

There are a number of reasons that a cat's spay incision could open.
  • If the cat has managed to lick or chew their wound.
  • If the cat has been active, such as running or jumping.
  • If there is swelling around the wound.
  • If the suture material breaks.
  • If the wound becomes infected.

Although you and the vet will have taken all precautions against any of these events, like using a surgical collar to prevent licking, sending your cat home with anti-inflammatory medication, or keeping them confined to a small room, it is impossible to tell a cat what to do (or what not to do), and sometimes complications just happen.

Most of the time, it is just the skin layer that might open up, but sometimes, the muscle layer could open as well. Most of the time, cats don’t seem to be in pain or even bothered when this happens!

cats-belly-with-incision-scar
Image Credit: Natures Charm, Shutterstock

Cat Spay — What’s Involved?

Most cats are spayed via a small incision in the midline of their abdomen, although some vets use a technique called a flank spay, where the incision is on the side. In either case, the incision is made in the skin, through a very thin subcutaneous layer and through the abdominal muscles, into the abdominal cavity. The blood supply to the uterus and ovaries is tied off, and the reproductive organs are removed (ovariohysterectomy).

In cats, this is usually quite a straightforward procedure, as the ovaries are quite mobile, making them easy to get to without causing much disturbance, and feline blood vessels are so tiny that there is usually very little bleeding.

The incision is normally closed in two separate layers: the muscle layer and the skin layer.  The sutures that close the muscle layer will eventually dissolve, but this can take at least 3–4 months. The skin may be closed in a number of different ways, but there will usually either be nylon sutures on the outside of the wound or intradermal sutures placed within the skin layer, which will also dissolve in time.

You are free to use this image but we do require you to link back to Catster.com for credit

Could My Cat Eviscerate Through the Wound?

It is possible, but this would be very rare. Firstly, most cat spay wounds are quite small and would not usually allow more than a tiny bit of abdominal fat to peek through. Secondly, most of the time, the muscle layer stays closed, even if the skin has opened a little, and this is the important layer in terms of keeping everything inside.

The flank spay approach is often used in feral cats if they cannot be kept inside for very long. The reason is that if the wound opened up on their side, gravity makes evisceration almost impossible.

divider cat paws 2 oct 2024

Final Thoughts

Although cat spays are a common and relatively straightforward procedure, complications can still occur. If you notice that your cat’s spay incision is slightly open, there’s no need to panic, but get in touch with a vet for guidance. They will check for signs of infection, check that the muscle layer is intact, and decide whether or not the wound needs re-suturing.

Prevention is always the best medicine, and keeping your cat confined to a single room, making sure they can’t run and jump, and using a surgical collar (cone of shame) to prevent them from licking their wounds are the best ways to reduce your cat’s risk of post-op complications.


Featured Image Credit: DreamHack, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

6 Flat-Faced Cat Breeds (With Info & Pictures)

Flat-faced or brachycephalic cat breeds are, as their name indicates, characterized by flat faces and short snouts, similar to Bulldog and Pug dog...

Why Are My Cats Whiskers So Long? 6 Vet-Reviewed Reasons

Many people adore cats as pets and are often curious about their cute physical characteristics. They have long, noticeable whiskers, or vibrissae, as...

How To Litter Train An Older Cat: 12 Vet-Approved Steps

If you have an older outdoor cat who needs to start living inside, you may be wondering if it’s possible to train them...

Are Slow Feeders Good For Cats? Vet Approved Pros, Cons & Verdict

Every cat parent has probably seen their cat begging for food so badly that, once you put the food down, they scarf down...

More related

Does Catnip Really Make Cats High? What You Need to Know!

It’s no secret that many cats love catnip. The plant, which is in the mint family, has a potent effect on felines, making...

Do Cats and Dogs Hate Each Other? Vet-Approved Explanation

There are certain things in this life that we’ve been taught to believe. Kids are told that if they make goofy faces, it...

Cat Yeast Infection vs. Ear Mites: Vet Reviewed Differences (With Pictures)

If your cat is constantly shaking their head and scratching their ears, a few scenarios may come to mind: Are they allergic to...

14 Cat Breeds With Curly Tails (With Info & Pictures)

Although lots of cats curl their tails around themselves to communicate or keep warm, there are very few cats with curly tails. Kitties...

Keep reading

Why Does My Cat Chirp at Birds? 3 Vet-Verified Common Reasons

Your cat may seem like a cuddly ball of fur or even a hairless wonder who loves to spend time with you under the blankets, but something changes when your feline sees a bird outside the window. Instantly, your kitty...

cat watching bird on the window

How Much Does It Cost to Euthanize a Cat? 2025 Vet-Verified Price Guide

Unfortunately, saying goodbye to a beloved cat can be difficult for pet owners. But in many cases, it’s necessary if the cat suffers from an illness or age-related problems. Euthanasia is a humane and compassionate way to end an animal’s...

cat in the clinic with veterinarian and owner

Can a Cat Hear Better Than a Dog? Vet Approved Differences & Comparison

Cats and dogs often get compared to each other, and many people engage in heated debates to determine which pet is better than the other. When it comes to the arena of hearing, science has proven that cats generally have...

dog and cat checked by vet

9 Best Cat Foods for Diarrhea in 2025: Reviews & Top Picks

When your cat has diarrhea, it affects the entire household. There can be additional messes to clean up and unpleasant odors to contend with. Generally, diarrhea is a short-lived experience and things will go back to normal in a short...

cat eating kibbles from red bowl

How Long Can a Cat Go Without Pooping? Vet-Verified Causes & Solutions

Cats are extremely routine-based animals, and if you watch them long enough, you will notice that they do certain things at the same time each day and can be accurate even down to the minute. This is so true that...

woman-teaching-cat-to-uese-litter-box

16 Vet-Reviewed Tips on How to Cat-Proof Your Apartment

Cats tend to get into a lot of trouble when left to their own devices. You turn your back, and half your home is in ruins, or worse, your cat has injured themselves or ingested something harmful! Cat-proofing your apartment...

Striped cat in modern home

How Do I Choose the Right Toys for My Cat? Vet-Approved Tips & Guide

When you have a cat, you already know how important it is to make sure they have something to do. This is particularly true of purely indoor cats. Cats have a natural instinct to stalk and hunt prey, so without...

Young happy woman choosing toys for pets in pet shop

Can Cats Eat Peanuts? Vet Reviewed Health Benefits & Precautions

Peanuts are a delicious, high-protein snack that people enjoy all over the world. They are available in snack packs with various spices and flavorings, making them ideal for on-the-go snacking that’s healthier than potato chips or candy. As pet owners,...

Can Cats Eat Peanuts