4 Common Pet Mice Diseases & Health Problems (Vet Answer)

Any pet can be prone to disease, including pet mice. The lifespan of a pet mouse is a maximum of 3 years. Sometimes due to poor care, they can fall ill with respiratory and dermatological diseases. Other times, they will develop different forms of cancer.

If your pet mouse shows signs of illness, it is recommended to take them to the veterinarian. It is your responsibility as an owner to react quickly to the small changes that your pet presents and offer them a healthy life.

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The 4 Common Pet Mice Diseases, Illnesses & Health Problems

1. Respiratory Diseases

Mice, like pet rats, are prone to respiratory diseases. Some can develop due to poor care conditions, while others can be caused when you introduce a new sick pet, and still others can be transmitted from the mother during birth.

The causes of respiratory diseases are represented by bacteria and viruses. The most common respiratory conditions in pet mice are those caused by the Sendai virus (a paramyxovirus) and Mycoplasma pulmonis (bacterium). Other bacteria that can affect the respiratory tract of mice are Streptococcus pneumonia and Corynebacterium kutscheri.

Clinical signs of respiratory infections in pet mice include:
  • Sneezing

  • Shallow or labored breathing

  • Breathing noises

close up of mice selective focus
Image Credit: Monique Guilbault, Shutterstock

2. Skin Diseases

Pet mice are prone to infestation with mites, which can cause skin diseases if the infestation is massive. In severe cases, external parasitism with mites can lead to stress and death (mice get stressed very easily).

Clinical signs include:
  • Excessive scratching

  • Hairless areas

  • Scales and crusts on the skin

  • Redness

  • Secondary infections

Other external parasites that mice can get are fleas, ringworm, and lice.

Other skin diseases that pet mice can develop are:

  • Staphylococcus infections

  • Scaly skin disease (Corynebacterium bovis infection)

  • Ringtail syndrome

  • Barbering (fur chewing)


3. Digestive Disorders

One of the most common problems in pet mice is diarrhea. It can be an effect of an improper diet, unwashed fruits and vegetables, digestive diseases, ingestion of toxic plants, or stress.

Clinical signs include:
  • Mushy or runny feces

  • Dehydration

  • Fur around the anus being dirty

Viruses, parasites, or bacteria can cause digestive problems. Overall, the clinical signs include:

  • Lack of appetite

  • Coarse, matte fur

  • Weight loss

  • Diarrhea

White pet rat being checked up by the vet at the vet office
Image Credit: abd, Shutterstock

4. Cancer

Tumors and cancers are common in mice. Some are malignant, while others are benign. Vets typically recommend removing the tumor to help reduce the chance of death.

The occurrence of cancer in pet mice depends on several factors:
  • Breed

  • Age

  • Environment

  • Viral infections

The most common form of cancer in pet mice is mammary tumors. The tumors develop under the skin and can be caused by viral infections, which can be transmitted to the pups through the mother’s milk and placenta. In some cases, even if the mammary cancer is surgically removed, it can spread to the lungs (i.e., metastasize).

How Do You Tell If a Pet Mouse Has a Disease?

Healthy mice have shiny fur, clean skin, and bright eyes and do not present nasal and eye secretions or breathe with difficulty. So, when a mouse gets sick, they may show the following clinical signs:

  • Hair loss

  • Excessive scratching

  • Sneezing

  • Noisy and/or difficult breathing

  • Nasal and eye secretions

  • Low appetite

  • Nodules on the body

If your mouse shows signs of illness, take them to the vet. Although common pet mouse health problems are usually treatable, they can become complicated and lead to your pet’s death.

pet mice on human hand
Image Credit: Sergey Bezgodov, Shutterstock

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Conclusion

Mice are generally healthy animals but can be prone to certain diseases. The most common diseases in mice include mammary cancer, respiratory diseases (especially those caused by Mycoplasma pulmonis), skin diseases (especially those caused by external parasites), and digestive problems. To prevent a few of these medical conditions, it is crucial to provide your pet with a balanced diet and a clean and ventilated environment. Also, avoid using bedding that creates dust because it can irritate their respiratory tract. If your pet shows clinical signs or changes in their behavior, a visit to the veterinarian will be necessary.


Featured Image Credit: Felicia Morack, Shutterstock

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Where Do Chinchillas Like to Be Petted? (Guide With Infographic)

Chinchillas are known and loved for their silky, dense fur and adorable little faces. Their fur is extremely dense, making it irresistible for cuddles and petting. It is so dense each follicle can hold up to 50 hairs! Furthermore, they are great pets for allergy sufferers as they don’t produce as much dander.

Their silky, dense coat is one of the reasons they are irresistible to pet, but a Chinchilla is not a companion that will willingly roll onto its back like a cat for scratches. They tend to prefer their head and back petted.

While affectionate, they are also delicate, so petting should be done cautiously and only when your Chinchilla trusts you. Once you have earned its trust, your Chinchilla will appreciate gentle petting.

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Where Do Chinchillas Like to Be Petted?

Chinchillas like to be petted on their head or their back. That is where they feel safe and are less likely to get hurt. Some also love chin rubs, and a few enjoy belly rubs, but most are wary since the belly is a delicate area.

Chinchillas are very fragile creatures because they have flexible ribs that are thin and mainly made of cartilage. A Chinchilla’s ribs can easily bend and put pressure on the internal organs. Furthermore, the ribs could snap and result in a punctured lung.

That is why it is recommended not to hold your Chinchilla too tightly and why children should not hold them. Chinchillas are naturally nervous around humans because of being hunted in the wild. This may explain why they don’t enjoy being picked up initially until they learn you can be trusted. Once they know you can be trusted, they can be very affectionate, and some may even hop into your hands or lap for you to pick them up.

woman holding cute chinchilla in room
Image Credit: New Africa, Shutterstock

How to Bond with Your Chinchilla

A Chinchilla owner needs to earn and retain a Chinchilla’s trust. It may take a few weeks for a new Chinchilla to get to know its owner and allow the owner to pet or hold it. The best method involves a lot of patience as you slowly earn its trust and visit your Chinchilla at the same time every day. If you break your Chinchilla trust once, it won’t forget, and it will take longer for you to earn its complete trust, so patience and consistency are key.

You should give your Chinchilla time to adjust to its surroundings since the first few days in a new house may be very stressful. When you approach its cage, do so slowly while talking to it in a calm voice. When you are changing water or feeding your Chinchilla in the first few days, don’t attempt to pet it. With time, your Chinchilla will get to know your voice and become more at ease. You will notice this when it approaches the side of the cage when you come into the room.

How to Pick up Your Chinchilla

Like many small pets, Chinchillas may feel afraid when handled roughly. It’s important to learn how to pick up your Chinchilla so that it doesn’t panic or get injured.

Tips for Adults

When adults pick up a Chinchilla, they should gently place one hand under or around the chest and use the hand to support and lift the hind legs. When you have your Chinchilla in your hands, hold it close to your body and keep it upright to protect its delicate spine.

Tips for Children

It is recommended that children shouldn’t pick up Chinchillas because of how delicate they are. It is best for them to interact at the ground level. This can be done by creating a safe area where the Chinchilla can run free. The child should sit on the floor or a low seat and allow the Chinchilla to approach them. This can be done by enticing it with treats. As time passes, the Chinchilla will become more comfortable with the child, and the child can pet it gently on its back or head.

little girl holding a chinchilla
Image Credit: Ruslan Huzau, Shutterstock

Training Tips

You can sit quietly beside the cage and wait to see if your Chinchilla comes over. If it does, offer a treat or pellet through the bars. When you raise the treat to your Chinchilla’s level with your arm, it will likely run away, but its curiosity will make it come back to your fingers. Your Chinchilla will start to anticipate your visits if you repeat this action at the same time every night.

After a few days of feeding your Chinchilla through the cage, try setting your hand on the cage floor with the palm facing up. Allow your Chinchilla to approach your hand, and don’t attempt to grab or pet it. Once it approaches your hand, it will sniff your fingertips, run away, and return. Reward your Chinchilla for being well-behaved after each session, and it will eventually grow accustomed to being around you to the point that you can hold and pet it.

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Keeping You Chinchilla Happy, Healthy, and Safe

You will only get to pet and hold your Chinchilla when it feels safe and happy around you, and that starts with a great home.

  • Your Chinchilla enclosure needs to be secure and spacious. They are very active and need a lot of exercise space where they can run and jump.

  • Because Chinchillas are curious and like to explore with their mouths, make sure their home is free of any dangers that could harm them.   Always watch them if they are running alone in your home to prevent them from hurting themselves.

  • When standing on wire mesh for an extended time, Chinchillas can injure their feet. Ensure the floors are solid wood to keep their feet safe.

  • Chinchillas require a lot of bedding to stay warm, and it should be safe for them to ingest. High-quality dust-free hay is preferable, and anything unsafe to ingest, such as cotton wool, should be avoided.

  • Provide a shallow tray with clean, fine sand or “Chinchilla dust” for your Chinchillas to bathe daily. This keeps their fur in excellent condition. Remove or clean with a sieve to prevent contamination after it has been used.

  • Keep your Chinchilla in a quiet, peaceful area, away from other pets. Chinchillas love routines and can become shy and anxious if their home is close to activity or loud noises.

  • Hideouts and nest boxes made of hay provide your Chinchilla with constant access to hideouts to rest and sleep in.

  • Routinely clean its cage to prevent urine and waste from building up. To make it easy to collect waste, use a cage that incorporates a tray underneath the floor.

  • Provide solid platforms and branches at various levels for resting and jumping. Chinchillas also enjoy biting and nibbling on things, so provide them with wood, rope, cardboard, and pumice toys.

  • If you’re going on vacation, ask someone you can trust to take care of your Chinchillas in a comfortable environment. Consider putting familiar-smelling items in its cage to help it feel more relaxed.

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Conclusion

While Chinchillas are affectionate, they may be nervous about being petted and held. An owner needs to earn trust first, but once trust is gained, your Chinchilla will appreciate some gentle petting on its head, back, under the chin, and sometimes, but rarely, its belly. Petting your Chinchilla is safer when you don’t hold it because their bodies are very delicate. If you want to hold and pet your Chinchilla, you must first gain its trust and then learn how to hold it safely. A happy and healthy Chinchilla will be more trusting and receptive to petting, so make sure you take the best care of your Chinchilla and provide it with a safe home, quality diet, and lots of love.


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The post Where Do Chinchillas Like to Be Petted? (Guide With Infographic) appeared first on Pet Keen.

How Long Are Pet Mice Pregnant? Gestation Period & Reproduction

Mice are found throughout the world and are common and popular pets. They only need a relatively small amount of space to live, they can be handled if they are used to being picked up, and they are cute and fun to watch, although their nocturnal habits and their tiny size mean that they might not be the best pet for very young children.

However, one area of concern for some owners is their propensity to breed. A female mouse can have as many as 50 pups in a single year, so owners need to take care to ensure that they aren’t quickly overrun by little mice feet. Whether planned or accidental, your mouse will be pregnant for about 20 days and will typically have a litter of between 10 and 12 pups.

The pups need to be left alone for the first 7 days and by the 2-week stage they will look like small adult mice rather than little pinkies. Read on for more information about the gestation period and reproductive cycle of mice, as well as some signs that your female mouse might be pregnant.

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Mouse Reproductive Cycle

Mice reach sexual maturity at just 6 to 8 weeks, and one of the most common reasons for unwanted litters is that owners didn’t separate young male and female mice in time. Always err on the side of caution if you are looking to avoid your female mouse getting pregnant. Another common cause of unwanted litters is that female mice can get pregnant virtually straight away after giving birth and certainly while still nursing one litter. This means that the male should be removed before the female gives birth.

Females go into heat roughly every month and remain in heat for around 4 to 5 days, which means that the female can get pregnant at any point during this time.

A litter of pups can consist of between 9 and 12 pups, and a female could become pregnant every month for a year. Considering some litters will be smaller than others, and there is likely to be a gap between some of the pregnancies, this means that a single female mouse could have 60 mice in a year. That’s a lot of mice to care for, rehome, and separate.

Breeding Mice

Breeding mice is easy. Put a male and female together long enough and the female will likely get pregnant. In fact, if you do keep males and females together, it will be a lot harder to prevent pregnancy than to encourage it.

Before you breed mice, though, ensure that it is the right thing to do in your circumstances. In less than a month, you could have a dozen new mice to care for. This means finding homes or providing homes yourself. There is very little if any profit in breeding mice, so it shouldn’t be done as a profitable venture. And unless you have people waiting to take the babies, you may find it difficult to rehome them.

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Image Credit: BERNATSKAIA OKSANA, Shutterstock

The 5 Signs That Your Mouse Is Pregnant

If a male and female mouse have spent any time together, there is a chance that the female will get pregnant. Look out for the following signs that your mouse is pregnant.

1. Semen Plug

After mating, a small amount of semen is left at the female mouse’s vagina entrance. This hardens and acts as a plug to prevent further mating. The plug can be visible for between 24 and 48 hours and after this time, it may still be found on the floor of the mouse’s cage. This isn’t a definite sign that your mouse is pregnant, but it is a sign that mating has taken place.


2. Nest Building

A pregnant female mouse will look to build a suitable nest for the impending arrival of her litter. If you notice that your mouse is hoarding bedding and other nesting items and moving them to a dark, secluded corner of her cage, this could be a sign that she is indeed pregnant.

white mouse in cage
Image Credit: iliuta goean, Shutterstock

3. Swollen Abdomen

A swollen abdomen is a common sign of pregnancy, but it may not always be noticeable in pregnant mice, especially if yours is carrying a small litter. If it is a large litter, however, the belly can appear very enlarged.


4. Prominent Nipples

The nipples will darken and may become enlarged, which means that they will be more visible than usual.


5. Behavior Changes

Hormonal changes cause your mouse to undergo some behavioral changes. She may ignore or actively discourage a male in the cage from getting too close, and she may not enjoy being picked up like she once did.

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Image Credit: Shutterbug75, Pixabay

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Conclusion

Mice may be small, but they can produce large numbers of young over a lifetime. A single litter of mice pups typically consists of about 10 young, and as soon as the pups are born, the female can, in some cases, get pregnant straight away. Gestation lasts about 20 days with young mice reaching sexual maturity as young as 6 weeks old.


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