Cat Throwing Up Every Day: Causes and Red Flags
By Dr. Zubair Khalid, DVM, MS, PhD ·
Vomiting once in a while can be normal for a cat, but a cat throwing up every day is a different situation. Daily vomiting usually points to an ongoing problem that will not fix itself, and the sooner it is checked, the better the odds of a simple treatment. This article is educational and is not a substitute for veterinary diagnosis or treatment.
Quick Answer
- Vomiting every day is too often. Occasional hairballs or a one-time upset stomach are common, but daily vomiting needs a veterinary workup.
- Track how often it happens, what comes up (food, foam, bile, hair), and whether it happens at a certain time, such as every morning before eating.
- Do not fast your cat or give human anti-nausea medicine. Cats can become dangerously ill within a day or two without food.
- Bring a photo or video of the vomit and a written log to your appointment. It helps your vet narrow down the cause faster.
- Go to an emergency clinic now if your cat is also lethargic, not eating, straining to vomit with nothing coming up, or showing pain.
What Daily Vomiting Looks Like and What Is Normal
True vomiting is active and forceful. Your cat may drool, swallow repeatedly, retch, and use her belly muscles to push contents out of her mouth [1]. That is different from regurgitation, which is a passive spill of undigested food with no retching.
A normal cat might vomit a hairball now and then. Cats swallow loose hair while grooming, and hair cannot be digested, so it clumps in the stomach and often comes back up [1]. Longhaired breeds are at higher risk of hairballs and of hair masses that harden and irritate or block the digestive tract [1].
The pattern matters more than a single episode. A cat throwing up once a day, a cat throwing up multiple times a day, and a cat throwing up every morning are all worth a call to your vet. If the pattern has lasted more than a few days, or keeps coming back after a bland diet or a food change, it counts as chronic vomiting.
Main Causes of a Cat Throwing Up Every Day
Vomiting is a sign, not a diagnosis. It can come from the digestive system itself or from disease elsewhere in the body. Causes include digestive disease, kidney or liver failure, pancreatitis, nervous system disorders, poisons, insect stings or snake bites, internal parasites (including heartworm), infections, inflammation, drugs, swallowed foreign objects, food allergy, and tumors [1].
Some causes are more likely in a cat that vomits daily for weeks. Here is how to think about the common ones.
| Cause | Typical clues | How urgent |
|---|---|---|
| Hairballs or hair mass | Longhaired cat, hair in the vomit, vomiting after grooming, sometimes constipation | Routine visit, sooner if not eating |
| Food allergy or diet intolerance | Vomiting within hours of eating, itchy skin, soft stool, symptoms improve on a new diet | Routine visit |
| Inflammatory bowel disease | Chronic intermittent vomiting, weight loss, appetite changes, sometimes diarrhea | Routine visit, sooner if losing weight |
| Chronic kidney disease | Increased thirst and urination, weight loss, bad breath, vomiting | Same-day to routine, depending on severity |
| Pancreatitis | Belly pain, hunched posture, not eating, vomiting, lethargy | Same day |
| Intestinal blockage or foreign object | Repeated vomiting, no appetite, straining, no stool, pain when picked up | Emergency now |
| Internal parasites | Vomiting, diarrhea, poor coat, possible weight loss | Routine visit |
| Toxin exposure | Sudden vomiting after chewing a plant, human medicine, or household product | Emergency now |
| Cancer or masses | Weight loss, vomiting that gets worse over time, changed appetite | Same day to urgent |
| Systemic infection or inflammation | Fever, lethargy, poor appetite, vomiting plus other signs | Same day |
Some causes are rare but serious. One report described a young cat with two weeks of intermittent vomiting that turned out to be septic splenitis, an infection of the spleen, along with lethargy, diarrhea, poor appetite, fever, and belly pain [2]. Another report described a six-month-old cat with vomiting, constipation, weight loss, and jaundice caused by a mass in the colon that created a mechanical blockage [3]. These cases show why daily vomiting deserves a real workup instead of guesswork.
If your cat vomits white foam, that often means the stomach is empty. Read more about that pattern in Why Is My Cat Repeatedly Throwing Up White Foam. If food comes up mostly undigested, see Cat Throwing Up Food Undigested.
Red Flags That Make It an Emergency
Go to an emergency clinic right away if you see any of these:
- Repeated retching with nothing coming up, especially with a swollen or painful belly. This can mean a blockage.
- Vomiting plus not eating for more than 24 hours, or refusing water.
- Blood in the vomit, or vomit that looks like coffee grounds.
- Vomiting after chewing a plant, human medication, or a household chemical. Lilies, onions, acetaminophen, and aspirin are common culprits, and vets sometimes induce vomiting to limit damage [4].
- Weakness, collapse, trouble breathing, seizures, or a body temperature that feels very hot or very cold.
- Vomiting plus a known or suspected swallowed object, such as string, a toy, or a bone.
- Vomiting in a kitten, a senior cat, or a cat with a chronic illness such as kidney disease or diabetes.
If you are unsure whether it is an emergency, call your vet or a pet poison hotline. Do not wait to see if it passes.
Safe Things You Can Do at Home While You Wait
You cannot diagnose your cat at home, but you can gather useful information and avoid harm.
- Stop free-feeding for a few hours only if your vet tells you to. Long fasts are risky for cats.
- Offer small, frequent meals of your cat's normal food or a bland diet your vet recommends. Small meals are easier on the stomach than one large one.
- Keep fresh water available at all times. Dehydration makes vomiting worse.
- Write down the time of each vomit, what it looked like, and what your cat ate before it. Note whether it happens right after eating or hours later.
- Take a photo or short video of the vomit. Color, texture, and whether hair or food is present all help your vet.
- Separate your cat from other pets so you can track eating, drinking, urinating, and stool.
- Do not give human anti-nausea drugs, pain relievers, or antibiotics. Many are toxic to cats.
- Do not change the diet suddenly unless your vet advises it. A sudden switch can cause more vomiting.
If your cat is stable, eating, and acting normal between episodes, a routine visit within a day or two is reasonable. If any red flag appears, skip the wait.
What Your Veterinarian Will Check and Test
Your vet will start with a full history and a physical exam. Expect questions about diet, treats, plants in the home, medications, and whether your cat goes outside. The vet will check hydration, weight, belly pain, gum color, and lymph nodes.
Common tests include:
- Blood work, including a complete blood count and a chemistry panel, to check for kidney or liver problems, infection, and electrolyte imbalances.
- A urine test, which helps assess kidney function and rule out urinary problems.
- Fecal testing for parasites.
- X-rays or ultrasound to look for foreign objects, masses, thickened intestines, or fluid.
- A food trial if food allergy or intolerance is suspected.
- Endoscopy or surgery in some cases, especially if a mass or blockage is found.
Treatment depends on the cause. Some cats need fluids, a prescription diet, deworming, or antibiotics. Others need anti-nausea medication. Maropitant is one antiemetic that has been shown to reduce vomiting risk in cats in controlled studies [5]. Your vet will choose a drug and dose based on your cat's weight, other health problems, and the likely cause. Never use a medication left over from another pet.
If the cause is not obvious, your vet may recommend a step-by-step plan. That is normal. Chronic vomiting often takes more than one visit to sort out.
How to Prevent and Monitor Daily Vomiting
Prevention depends on the cause, but a few habits help most cats.
- Feed a consistent, balanced diet. If your vet recommends a limited-ingredient or hydrolyzed diet, stick with it and avoid table scraps.
- Brush longhaired cats several times a week to reduce swallowed hair [1].
- Keep hairball remedies and treats to a minimum unless your vet approves them.
- Control parasites with a product your vet recommends, including heartworm prevention.
- Keep trash, string, toys, bones, and human medications out of reach.
- Schedule regular wellness visits, especially for senior cats or cats with kidney disease.
- Weigh your cat monthly. Weight loss is an early clue that something is wrong.
- Keep a simple log of vomiting episodes. Patterns help your vet adjust treatment.
If your cat has been vomiting daily and the cause is known, ask your vet what a good week looks like. A clear target, such as no vomiting for two weeks, makes it easier to know when to call back.
For a broader look at vomiting patterns, see Why Is My Cat Vomiting? Common Causes and Red Flags. If hairballs are the main issue, read Cat Vomiting Hairballs: How Often Is Too Often?.
Limitations and When to Contact a Veterinarian
This article cannot tell you what is wrong with your cat. Only a veterinarian who examines your cat can do that. Use the timing below as a guide.
Contact your veterinarian the same day if your cat:
- Vomits more than twice in 24 hours.
- Has vomited daily for three days or more.
- Is eating less than usual or losing weight.
- Has diarrhea along with vomiting.
- Has bad breath, increased thirst, or increased urination.
- Is a kitten, a senior, or has a chronic illness.
Go to an emergency clinic now if your cat:
- Retches without producing anything, or has a swollen, painful belly.
- Cannot keep water down.
- Is weak, wobbly, collapsed, or breathing hard.
- Vomited after contact with a toxin, or you suspect a swallowed object.
- Has blood in the vomit or black, tarry stool.
Schedule a routine visit if your cat:
- Vomits once a day but is otherwise bright, eating, and drinking.
- Has a long history of hairballs that seems to be getting worse.
- Needs a diet plan or a parasite prevention update.
Every cat is different, and daily vomiting always deserves a veterinary opinion.
Frequently Asked Questions
Is it normal for a cat to throw up every day?
No. Daily vomiting is not normal and usually means an ongoing problem. A healthy cat may vomit a hairball now and then, but a cat that vomits every day needs a veterinary workup.
Why does my cat throw up every morning?
Morning vomiting often happens when the stomach is empty overnight. It can also be a sign of a chronic condition such as kidney disease, inflammatory bowel disease, or food intolerance. Your vet can help sort out which one fits your cat.
Can I give my cat human anti-nausea medicine?
No. Many human medications are toxic to cats, and the dose is not the same. Anti-nausea drugs for cats are prescription only, and your vet will calculate the dose from your cat's weight and health.
What if my cat vomits multiple times a day but still eats?
Repeated vomiting still needs attention even if your cat is eating. It can cause dehydration and electrolyte problems, and it may signal a blockage or other serious issue. Call your vet the same day.
How long can I wait before calling the vet?
If your cat is bright and eating, a routine visit within a day or two is reasonable. If there are any red flags, such as retching with nothing coming up, not eating, or pain, go to an emergency clinic right away.
Related Articles
- Why Is My Cat Vomiting? Common Causes and Red Flags
- Cat Vomiting Hairballs: How Often Is Too Often?
- Why Is My Cat Repeatedly Throwing Up White Foam
- Cat Throwing Up Food Undigested
- Cat Vomiting: When to Worry and What to Do
- Cat Vomiting Once and Acting Normal: When to Monitor and When to Call
References
- Vomiting in Cats - Cat Owners. Merck Veterinary Manual.
- Successful Management of Septic Splenitis in an Abyssinian Cat. Veterinary medicine and science, 2026.
- Obstructive colonic FGESF associated with feline infectious peritonitis in a cat: a case report. BMC veterinary research, 2026.
- Use of orally administered dexmedetomidine to induce emesis in cats. Journal of feline medicine and surgery, 2024.
- Receptor-Targeted Antiemetic Strategies in Cats: A Systematic Review and Intervention-Specific Meta-Analysis. Veterinary medicine and science, 2026.