Can a UTI Kill a Hamster? Here’s What You Need To Know

Hamsters have a higher risk of developing urinary tract infections (UTIs) due to their anatomy. Their low-to-the-ground bodies pick up bacteria easily, which enter the urethra, infecting the bladder.

But can a UTI kill a hamster? Hamsters usually don’t die from a UTI. However, if left untreated, the infection can cause long-term health complications, such as renal failure, which can be fatal in some cases. It’s important to seek veterinary care if you suspect your hamster has a UTI. 

We’ll discuss the signs of UTI in hamsters, the potential risks, and how you can best treat it to keep your pet safe and healthy. So if you are a hamster owner, read on to learn more about UTIs and how to protect your beloved pet.

Can a UTI Kill a Hamster?

No. But UTIs can be deadly for hamsters if untreated, and the likelihood of such a fatal outcome is minimal. If neglected, urinary tract infections can take a turn for the worse, putting the hamster’s kidneys and bladder in danger. It may lead to a renal breakdown, which is potentially lethal for the hamster. 

Can a UTI Kill a Hamster

In addition, the infection may enter the blood and trigger sepsis, a hazardous health condition. In extreme cases, the bladder of the hamster can break open.

Bacteria is responsible for the infection, which is the cause of inflammation and discomfort in the bladder and urinary tract. Symptoms such as pain when urinating and bloody urine may arise from UTI.

Can a UTI Kill a Hamster

If you suspect your hamster has a UTI, take them to a veterinarian immediately. With a proper diagnosis, the vet can prescribe antibiotics to combat the infection and take steps to clean the bladder and urinary tract. Plus, the vet can administer fluid therapy to flush out the bacteria.

What Causes UTI In Hamsters?

What Causes UTI In Hamsters

Urinary tract infections (UTI) in hamsters can be caused by several factors, including:

  • Bacterial infection: Hamsters are prone to bacterial infections in their urinary tract, leading to UTIs. Urinary tract infections in hamsters are most frequently caused by Escherichia coli (E. coli). Though these bacteria may exist without harm in the hamster’s gut, maintaining a clean cage reduces the risk of urinary tract infections.
  • Dirty living conditions: Poor hygiene, such as dirty cages and lack of fresh water, is a primary cause of UTIs in hamsters. If a hamster’s cage is not cleaned regularly, bacteria will accumulate in the cage and in the bedding, leading to an infection. 
  • Diet: A diet high in sugar and low in fiber can increase the risk of UTI.
  • Stress: If a hamster is anxious or scared, it may not be able to urinate properly, which can lead to an infection. 
  • Bladder stones: The formation of bladder stones in hamsters can cause repeated UTIs. Without intervention, it may cause permanent damage to the hamster’s bladder or kidneys.
  • Genetics: Some hamsters, especially females, are predisposed to developing UTIs.

How to Spot a Urinary Tract Infection in Your Hamster

If your hamster has a urinary tract infection (UTI), you may notice some tell-tale signs that something is amiss. These signs may include:

How to Spot a Urinary Tract Infection in Your Hamster


As hamsters age, their activity naturally begins to decrease. However, a urinary tract infection (UTI) could be the culprit for lethargy, decreased grooming, and drowsiness. Keep an eye out for any other signs of illness if you notice any changes in your hamster’s behavior.

Excessive Thirst

Excessive drinking by a hamster may indicate a urinary tract infection. However, other conditions like diabetes or dehydration due to hot temperatures may be the cause.

Reluctance Urinating

The average hamster will typically urinate about seven times daily, but if it has a urinary tract infection (UTI), eliminating its bladder can be very uncomfortable, with a burning sensation. Pay attention to your hamster’s reaction while they are relieving themselves – if it’s done in a normal, silent manner, there’s nothing to worry about.

Polyuria (constant urge to urinate)

Your hamster may also have polyuria, a constant urge to urinate. A hamster that has a UTI may experience frequent urination in small quantities. Also, hamsters are nocturnal, making the emergence of a hamster during the day to relieve itself a symptom of polyuria.

How to Spot a Urinary Tract Infection in Your Hamster

Foul-Smelling Urine

Generally, the smell of hamster urine is not pleasant due to the presence of ammonia. However, it doesn’t necessarily have to be a smelly pet if its cage is kept clean. On the other hand, if the hamster has a urinary tract infection, the odor will be much more pungent. The urine may also have a metallic smell from the passing of blood.

Discolored Urine

Hamster urine is typically milky-white; however, if a urinary tract infection (UTI) is present, it may be cloudy and discolored due to bacteria. Unusual colors such as brown, orange, pink, yellow, or red should raise suspicion, as these may indicate blood in the urine. 

How to Spot a Urinary Tract Infection in Your Hamster

However, it is important to remember that urine can also be discolored due to certain foods, such as beetroot and blackberries.

Leaky Urine & Wet Bottom

If a hamster is suffering from a Urinary Tract Infection (UTI), it can manifest as incontinence, leading to a urine collecting around its bottom. The affected area may be stained, damp, and accompanied by a foul smell.

How To Treat UTI In Hamsters

UTI may disappear on its own, but it may take a considerable period. In addition, it may cause considerable suffering or spread to other body parts.

How To Treat UTI In Hamsters

Veterinary checkup

However, getting a proper diagnosis from a vet is important to determine the best course of treatment, as UTIs can have multiple causes and may require different treatments.

Oral treatment

Your veterinarian will prescribe a full dose of oral antibiotics like Baytril for your hamster administered daily for two to three weeks. During this period, the hamster should be provided with a peaceful environment free from distractions to get the rest it needs to recover.

How To Treat UTI In Hamsters

Changes in Diet

Treatment may also involve making changes to the hamster’s diet. Provide your hamster with a freshwater source, and try offering it a bit of plain Greek yogurt or sugar-free cranberry juice. 

Cranberry extract lowers the pH level of the urine, which can eliminate certain types of crystals and bacteria. The usual dosage is 1 teaspoonful or 5ml each day.

How To Prevent UTI In Hamsters

How To Prevent UTI In Hamsters

To prevent UTIs (Urinary Tract Infections) in hamsters, you can consider following tips:

  • Provide a clean and dry cage: Hamsters should be kept in a clean and dry cage, free from any damp bedding or substrate that could cause bacteria growth.
  • Offer plenty of water: Make sure your hamster has access to clean, fresh water at all times.
  • Offer a balanced diet: Provide your hamster with a balanced diet to maintain good health and prevent the formation of bladder stones.
  • Monitor bathroom habits: Observe your hamster’s bathroom habits regularly and take note of any changes, such as a decrease in urination or changes in the appearance or smell of urine.
  • Regular veterinary check-ups: Regular veterinary check-ups can help detect any health issues early on and prevent the onset of UTIs.
If you’re interested in learning more about hamster nutrition and health, you might find our articles on what fruits can hamsters eat and what hamster poop looks like helpful. Our article on what fruits can hamsters eat provides a detailed list of fruits that are safe and nutritious for your furry friend, along with tips on how to feed them. Meanwhile, our article on what hamster poop looks like explores the different types of hamster poop, what they can tell you about your hamster’s health, and how to maintain good digestive health in your pet. Be sure to check out these articles to keep your hamster healthy and happy.


This section answers some of the most frequently asked questions about hamster UTIs so you can better understand how to protect your pet.

Q: How do hamsters get UTIs?

Hamsters can get UTIs when bacteria enter the urethra. This can happen when a hamster is exposed to dirty bedding, is kept in a dirty cage, or is not provided clean drinking water. 

Q: Can UTI be treated in a hamster?

You can treat UTI in a hamster. Treatment for a UTI in a hamster typically involves antibiotics, pain relief medication, and supportive care. 

Q: How can I prevent my hamster from getting a UTI?

Regularly check your hamster for signs of a UTI and provide an appropriate diet and clean environment to minimize the risk. If you notice any UTI symptoms, take your hamster to the vet immediately.


UTIs can be fatal for hamsters if left untreated. But with prompt and appropriate medical treatment, most hamsters can recover and live healthy life. Hamsters are susceptible to UTIs due to their small size and anatomy, which makes it easier for bacteria to enter and infect their urinary tract.

Symptoms of a UTI in hamsters may include frequent urination, difficulty urinating, cloudy or strong-smelling urine, and lethargy. To prevent UTIs, maintain a clean and healthy environment, provide a balanced diet, and monitor your hamster’s urination habits. 

Lisa G

Meet Lisa G, the founder and author of With over 3 years of experience studying and observing various species of rodents. Lisa has established herself as a credible expert in the field. Her passion for these often-overlooked animals shines through in her in-depth articles and engaging writing style. Follow her blog to learn fascinating facts and gain a new appreciation for the furry creatures that share our world.

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