By Dr Duncan Houston
A kitten can go from chasing a toy to hiding under the bed when something is wrong. Because young kittens have limited reserves, changes in feeding, energy or breathing deserve attention early.
These five problems are commonly encountered in kitten care, but their frequency varies with age, location and living conditions. They are not a universal ranking, and a symptom list cannot establish a diagnosis.
Quick Answer
Respiratory infections, ear mites, intestinal parasites, ringworm and fleas are common concerns in kittens. Contact a vet promptly when a kitten is unwell, especially if appetite or energy falls. Breathing difficulty, collapse, marked weakness, repeated vomiting or a cold kitten that cannot feed requires urgent care rather than several days of observation.
1. Upper respiratory infections
Sneezing, discharge from the eyes or nose and reduced appetite can accompany feline herpesvirus, calicivirus and other infections. Nasal congestion or mouth discomfort can make eating difficult. A painful, squinting eye may have a corneal problem that needs separate treatment.
Cornell’s respiratory-infection guidance describes the range of causes and the importance of hydration and nutrition. Antibiotics do not treat viruses themselves; a vet decides when bacterial infection, antivirals or additional testing needs consideration.
For a stable kitten awaiting advice, gently wipe discharge from surrounding fur and offer their familiar food in a quiet place. Do not use human cold medicines, essential oils or leftover steroid eye drops. Open-mouth breathing is an emergency.
2. Ear mites
Head shaking, scratching and dark ear debris can suggest ear mites, but yeast, bacteria and other ear conditions can look similar. An examination and a sample of debris help identify the cause.
The Companion Animal Parasite Council notes that mite numbers and visible irritation do not always match. Close contact spreads mites, so the vet should plan treatment for household dogs and cats with products suitable for each animal.
Do not push cotton buds into the canal or pour oil or peroxide into the ear. A head tilt, loss of balance or a very painful ear warrants prompt assessment, rather than assuming simple mites.
3. Intestinal parasites and digestive upset
Roundworms and other intestinal parasites can contribute to diarrhoea, a pot belly or poor growth. Giardia and coccidia require different consideration from intestinal worms. One deworming product does not cover every possible organism.
Take a fresh stool sample if the clinic requests it, and provide previous treatment dates and product names. CAPC’s roundworm guidance explains why young animals need a prevention plan and why a negative stool result does not exclude every infection.
Vomiting or diarrhoea can also follow diet changes, food intolerance, infection, toxins or a swallowed object. Do not automatically fast a kitten, give human anti-diarrhoea medicine or keep repeating dewormers without advice.
4. Ringworm
Ringworm is a fungal infection, despite its name. It may cause broken hairs, scaling or patches of hair loss, but the patches need not be circular and some infected cats show little change.
Veterinary ringworm guidance describes using examination and tests such as fungal culture or PCR to confirm the problem. A household torch or the shape of a bald patch cannot reliably diagnose it.
Ringworm can spread to people and other animals. Ask for a treatment and cleaning plan, wash hands after handling and avoid sharing brushes. Treatment may involve medication on the coat and by mouth; do not stop solely because hair starts growing back.
5. Fleas
Fleas cause itching and may leave dark specks in the coat. In a small kitten, a heavy burden can also cause dangerous blood loss. The CAPC flea guidance highlights anaemia as a serious risk in young animals.
A flea-covered kitten with pale gums, weakness or rapid breathing needs urgent veterinary assessment. Do not delay for a bath. Treatment must match the kitten’s age and weight; some dog products are highly toxic to cats.
Plan control for other household animals and the environment with your vet. Washing bedding and vacuuming help, but will not replace suitable treatment for the animal.
How urgent are your kitten’s symptoms?
| Signs | What to do |
|---|---|
| Mild sneezing or itching, eating and behaving normally | Contact the clinic for an appropriate appointment and monitoring plan. |
| Reduced appetite, repeated loose stools, eye discomfort or poor growth | Seek same-day advice; younger kittens need a lower threshold for examination. |
| Marked weakness, repeated vomiting, pale gums or inability to feed | Contact an urgent veterinary service immediately. |
| Open-mouth breathing, collapse, seizures, poisoning or serious injury | Go to an emergency service now and call ahead. |
What serious illnesses can resemble these problems?
Panleukopenia is a highly contagious viral disease that can cause profound illness, vomiting and sometimes diarrhoea, especially in susceptible kittens. Cornell’s panleukopenia information emphasises immediate veterinary contact for suspicious signs.
Low body temperature, low blood sugar, sepsis, congenital problems and intestinal obstruction can also make a kitten weak or unwilling to eat. A tiny kitten does not have to show every textbook symptom before help is needed.
When is this an emergency?
Act immediately for breathing difficulty, collapse, severe weakness or suspected poisoning. Keep the kitten secure and comfortably warm during transport, with protection from direct hot surfaces. Do not force food or liquid into a cold, unresponsive or breathless kitten. If string is visible from the mouth or anus, do not pull it.
Your practical care plan
- Record food intake, activity, stool and any vomiting.
- Weigh young kittens regularly on the same scale and report weight loss or failure to grow.
- Call with the kitten’s estimated age, weight, symptoms and treatment history.
- Keep an unwell newcomer separate from resident cats using dedicated bowls and litter equipment.
- Follow the treatment, recheck and reintroduction plan given by the vet.
Common mistakes
- Waiting 48 to 72 hours despite reduced feeding or weakness.
- Assuming dark ear debris always means mites.
- Using one disinfectant or dewormer as a solution for every organism.
- Starting human medicines or dog parasite products.
- Continuing home care after the kitten’s condition changes.
Prevention starts with individual care
Arrange an early health examination and a vaccination and parasite plan appropriate to the kitten’s history and location. Feed complete kitten food, protect rest and avoid overcrowding. Clean before disinfecting, use a product effective against the identified organism and follow dilution, contact-time and rinsing instructions. Keep kittens away until surfaces are safe.
Frequently Asked Questions
Can a kitten with a runny nose still need urgent help?
Yes, particularly with reduced feeding, eye pain, weakness or breathing difficulty.
Does one worming treatment cover Giardia and coccidia?
No. Diagnosis and treatment depend on the organism.
Can people catch ringworm?
Yes. Follow hygiene advice and seek human medical advice for suspicious skin lesions.
Can indoor kittens have parasites?
Yes. Infection may have occurred before adoption or through household exposure.
Respond to the kitten’s condition
Many kitten problems are treatable, but recognising deterioration early matters. Use the signs above to start a conversation with your vet and adjust the plan as your kitten changes.
For help making sense of your animal’s care and preparing questions for your veterinary team, visit ASK A VET™. Urgent symptoms need direct veterinary care.
The ASK A VET™ Tracker logs live location and activity trends, so a change in routine never goes unnoticed.

Every ASK A VET article is written and reviewed by qualified veterinarians.


