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If your cat hasn't eaten for several days, the first action to take in Busan
Your heart sinks when you watch your cat sit in front of the food bowl and just turn away. When you think, "I hardly ate yesterday either, and today too…," the first benchmark is 48 hours.
According to Hills Pet Korea, if decreased appetite continues for 24 to 48 hours or longer accompanied by symptoms such as vomiting, lethargy, and weight loss, it is likely not just picky eating but a sign of internal medical issues. Unlike dogs, cats can be rapidly affected by short-term food refusal, so veterinary consultation is recommended at this point.
Of course, the urgency varies depending on the severity of symptoms and accompanying symptoms. Since each individual's baseline state is different, rather than making judgments on your own, consulting with a veterinarian to check the current condition is the safest first step.
Why your cat won't eat — from stress to internal diseases
The causes of decreased appetite are far more diverse than you might think. According to an article by Daily Vet covering the KSFM Conference lecture by Professor Yoo Min-ok from Seoul National University College of Veterinary Medicine, feline anorexia is classified into four major types.
| Type | Characteristics | Main Cause Examples |
|---|---|---|
| Pseudo-anorexia | State where the cat wants to eat but cannot | Oral pain, stomatitis, dental disease, dysphagia |
| Primary anorexia | Problem in the appetite center itself | Brain disease, nervous system abnormality |
| Secondary anorexia | Decreased appetite due to other diseases | Kidney disease, liver disease, pancreatitis, infectious disease, tumor |
| Behavioral anorexia | Psychological and environmental factors | Stress, food aversion, environmental changes, pain |
The key point is that the same appearance of "not eating" can have completely different causes. In particular, if there is oral disease, the cat may come to the food bowl but be unable to eat, and if there are problems with the kidneys or liver, it may show loss of appetite accompanied by general lethargy. In clinical cases, digestive issues or foreign body ingestion have also been identified as causes.
Professor Yoo Min-ok emphasized that "cats can develop fatty liver due to decreased appetite, and in cases where metabolism is accelerated due to disease, early nutritional supply is important." Since the treatment direction varies completely depending on the cause, precise diagnosis through blood tests and imaging tests becomes the starting point for identifying the cause.
24H UN animal medical center's approach to treating feline anorexia in Busan
Since its establishment in 2016, the 24H UN animal medical center has been operating a cat-friendly treatment space and dedicated hospitalization rooms in Daeyeon-dong, Busan, and is identifying the causes of anorexia step-by-step through an interdisciplinary consultation system involving internal medicine, diagnostic imaging, and a kidney center.
Treatment proceeds through the following steps.
▪ Step 1 — Physical Examination: Body temperature, degree of dehydration, oral condition (teeth, gums, stomatitis presence), abdominal palpation, and other immediately detectable abnormal signs are examined first.
▪ Step 2 — Blood Test: Kidney levels (BUN, Creatinine, SDMA), liver levels (ALT, ALP), pancreatic levels, blood glucose, electrolytes, etc. are checked to assess whether there is an internal medical cause.
▪ Step 3 — Imaging Test: Digital X-ray and precise ultrasound are used to check for abdominal abnormalities, gastrointestinal status, tumor presence, ascites, and other conditions.
▪ Step 4 — Additional Tests and Consultation: Depending on test results, hormone tests, virus tests, and other tests may be added. If kidney abnormalities are confirmed, consultation with the kidney center follows, and if imaging findings are complex, collaboration with the diagnostic imaging team is initiated.
The International Society of Feline Medicine (ISFM) emphasizes that cats are species animals that view veterinary hospital visits themselves as major stress, and that a cat-friendly treatment environment has a direct impact on diagnostic accuracy and the cat's stability. Emergency veterinarians are stationed even during nighttime and holidays to respond immediately if symptoms deteriorate rapidly. The treatment direction may vary depending on individual status.
Should we take my cat to the hospital right now?
Check the items below. If there is even one applicable item, immediate veterinary consultation is recommended.
▪ Loss of appetite has been continuing for 48 hours (2 days) or more ▪ While not eating, vomiting or diarrhea has appeared ▪ The cat appears lethargic and doesn't move much compared to usual ▪ The cat drinks little water or, conversely, drinks excessively ▪ There is noticeable weight loss ▪ You sense jaundice (eyes and gums appear yellowish) ▪ Breathing is rapid or the cat breathes with its mouth open
In particular, if anorexia exceeds 3 days, the risk of progression to hepatic lipidosis (fatty liver) increases. According to Hidoc, when a cat cannot consume food for 3 days or more, the liver's metabolic capacity decreases and fat rapidly accumulates in liver cells, potentially leading to a serious state accompanied by jaundice, vomiting, and weight loss. According to veterinarian-reviewed materials, hepatic lipidosis can be sufficiently recoverable if intensive nutritional therapy begins early, but delayed diagnosis affects prognosis.
Even minor symptoms can have different risk levels depending on whether the individual has underlying diseases, so rather than putting off a decision with "let's wait a bit longer," it is safer to first check the condition with a veterinarian. Whether you are looking for a Suyeong-gu animal hospital, Haeundae cat hospital in Busan or need a Busan-jin-gu 24-hour animal hospital, you can visit the 24H UN animal medical center in Daeyeon-dong.
Results may vary depending on individual and personal circumstances
If your cat has been skipping meals for several days, now is the time for treatment
If your cat has been skipping meals for several days, please visit the 24H UN animal medical center in Daeyeon-dong, Busan to find the cause together through a cat-friendly treatment environment and an interdisciplinary consultation system.
The earlier the diagnosis of unexplained anorexia, the better it reduces the risk of secondary complications such as fatty liver. Even if it appears to be simple stress at first, a single blood test can reveal hidden kidney or liver abnormalities, and conversely, normal test results themselves can provide great peace of mind for the owner.
Available 365 days, 24 hours for all areas of Busan including Nam-gu, Suyeong-gu, Haeundae-gu, Dongrae-gu, and Yeonje-gu, as well as Yangsan, Gimhae, and Ulsan. You don't need to watch your cat turn away from the food bowl any longer today. Please come in now.
What every cat owner must know when their cat won't eat
Q1. My cat has barely eaten for the second day, should I go to the hospital right now?
48 hours is one benchmark. If it's just refusing food, you can observe the condition a bit longer, but if even one symptom such as vomiting, lethargy, or not drinking water appears, same-day treatment is recommended. As anorexia lengthens, the risk of fatty liver progression increases, so if you're unsure, it's good to get a phone consultation first.
Q2. What tests will my cat receive for anorexia treatment?
Generally the process follows: physical examination (checking body temperature, oral condition, dehydration) → blood test (checking kidney, liver, pancreatic levels, etc.) → imaging test (X-ray, ultrasound). Depending on results, hormone tests or virus tests may be added, or if abnormal findings are present, consultation with the relevant specialty center may follow. The scope of testing varies depending on individual status.
Q3. Are there methods I can try at home when my cat won't eat, or must I go to the hospital?
You can try switching to favorite foods or warming the food to enhance aroma. However, if there is no response to these attempts for more than a day, or if there are accompanying symptoms, treatment takes priority over home care. If the cause is an internal medical condition, it exceeds what can be resolved at home, so checking with a veterinarian is safer than self-judgment.
Results may vary depending on individual and personal circumstances