Why is my hamster poop green?

Why is my hamster poop green?

If your hamster poop is green, there is no need to worry. Here are 10 main reasons that cause this problem.

Why is my hamster poop green? Your hamster poop can be green because of diarrhea, food poisoning, antibiotics, poor hygiene, cold weather, and poor food. It is recommended to feed fresh food and water to your hamster to avoid stomach problems.

Hamster’s feces color is also important for his health. An owner of the pet should know about all the changes which hamster face. An owner should be active and attentive. When your hamster’s poop color is changed, then there is something going wrong.

It can be due to diarrhea or any other health problems. Hamster is a small pet and can die with small diseases. So it is essential to take care of him properly. You can not neglect him in any way. So if you want your hamster to keep healthy and fit, you have to take great care of him.

The change in the hamster’s feces color does not mean that he is suffering from a dangerous disease. But when the disease remains untreated for a long time, it can lead to serious illness. And serious illness can not treat easily.

So you should notice all the changes which he faces. And try to treat even his tiny problems. A healthy hamster’s poop or stool color will be dark, firm, and small.

Why is my hamster poop green?

There are several reasons and causes of hamster green poop. It can be due to dietary changes, unclean cage, stress, antibiotics, respiratory infections, and wet tail; it can also be due to diarrhea. You should treat all the causes without getting late.

But before treating any illness, you have to find out the actual disease. To remove illness, you should find the causes of illness. When you find out the actual reason for the disease, it can be easy to eliminate it.

Dietary problems

Dietary problems are the most common reason is the change of feces color of a hamster. The change in the color of stools may be due to a change in diet. It can also be due to malnutrition, which the hamster’s stomach can not digest properly. Severe pain in the stomach can make your hamster drag his back legs when walking.

Changing color in feces may be normal and not due to any illness. It can be caused by eating green leafy vegetables and fruits. Leafy vegetables play an important role in green poop. But there is a chance that which food you are providing your hamster is not safe or harmful.

Giving a poor diet to your hamsters may disturb his stomach, which causes green poop. Never give your hamster raw potatoes, tomato leaves, raw kidney beans, potato tops, buttercups, garlic, sweets, chocolate, rabbit mix, toffee, onions, and rhubarb leaves.

These vegetables and herbs are harmful to your pet, and they can destroy his health. Healthy foods can increase the size of teddy bear hamsters.

Diarrhea causes green poop

Diarrhea is another major reason for the hamster’s green poop. There are many reasons which caused diarrhea such as infections, overeating of fresh food and vegetables. Dehydration or low water intake is a major cause of diarrhea. Eating raw mushrooms can cause this problem.

Diarrhea is such a condition in which hamsters may have watery green stools, and they are frequent. Diarrhea may lead to serious or life-threatening problems. It is necessary to cure it immediately. Diarrhea itself may cause dehydration in hamsters or small pets.

Diarrhea in hamsters may occur due to bacteria, such as campylobacter e.coli and salmonella. Diarrhea may also cause an allergic reaction to foods. So you should prevent diarrhea from preventing green poop. You should daily change the food of the hamster to prevent this condition.

Cold weather

One of the main causes of green poop in hamsters is the temperature change. If your hamster has green poop in winter, it is because of cold weather. You should cover the pet hamster properly and take good care of it.

Sudden temperature changes can make your hamster ill, and he will have stomach problems. If you are making a litter box for a hamster at home, add some covering to protect the hamster from cold.

Unclean cage

Unclean or dirty cage may also cause green poop. It can affect health. So regular cleaning his cage and hamster is essential for his good health. The dirty environment may produce several germs that cause green poop. If the hamster living in squalor for a long time.

It can cause to build up bacteria in his system, which causes green poop. It may affect the digestive system of your hamster. Hamsters are like humans, though when humans live in a dirty or unclean environment, they prone to many diseases.

You should spot clean Hamster’s cage daily. You should do a deep cleaning of the hamster’s cage once a week. You should clean bedding, water bottle, feed bowl. Cleaning is a must to prevent diseases.

In a dirty environment, the disease attacks hamsters or any living thing rapidly. Feces and old feeding spreading in the hamster’s cage can build up bacteria and results in your hamster’s stomach and health. Poor stomach cause abnormal color feces.

Use of antibiotics

Excessive or abnormal use of everything leads to health problems. So it is necessary to intake a standard amount of everything. The use of antibiotics can cause a problem in his stomach. The hamster needs antibiotics rarely. So when they use antibiotics, it can upset the stomach, which leads to green feces.

Antibiotics have side effects too. So you should give them only prescribed antibiotics, which are specially for the pet. You should avoid all types of antibiotics, such as tetracycline, penicillin, vancomycin, ampicillin, amoxicillin, lincomycin, streptomycin, gentamycin, dihydrostreptomycin, erythromycin, and cephalosporins. These antibiotics may cause fatal toxicity.


Taking stress directly badly affects the stomach. It can disturb the hamster’s appetite. When a hamster moves from one place to another, he may suffer from stress. When you buy hamsters from pet stores, then they form a relationship with another hamster.

They find it too difficult to adjust to new people and a new cage. They can also suffer from stress when their cage mate separate from them. Stress disturbed their daily routine, their appetite, and stomach.

So any trauma or sudden changes in their life lead to having stress. And it causes green poop because of irregular feeding. Prolonged stress may destroy his health day by day. So it is important to resolve their issues.

Due to respiratory infections

Respiratory infections can disturb the hamster’s stomach. The signs and symptoms of respiratory infections include wheezing, sneezing, discharge from the nose and eyes, labored breathing, and green feces. Respiratory infections may cause pneumonia in hamsters.

Occasional wheezing, sneezing, and discharge is not troublesome. But decreased activity, loss of feeding, and difficulties in breathing are needed veterinary attention.

Wet tail

The other main cause of green poop is the wet tail. The wet tail is watery diarrhea or loose gree poops. That causes discomfort and dehydration in hamsters. If it is left untreated for a few days can lead to a hamster’s death.

The wet tail also is known as regional enteritis or proliferative. The excessive growth of campylobacter jejuni causes this type of bacteria.

Tiny baby hamsters usually prone to wet tail. The signs and symptoms of wet tail include dull eyes, swollen, loss of appetite, excessive diarrhea, blood in the stool, dehydration, lethargy, green stools, and hunched postures. There are many causes of wet tail disease in hamsters; stress is the main cause.

When hamsters move from pet stores or breeders to a new home or new pet store, it causes normal campylobacter bacteria, leading to diarrhea. And diarrhea causes wet tail, and wet tail leads to improper colored or green poop.

You should keep an eye on your hamster that he is doing his activities, running, and feeding normally. 

Abscess in hamster

Abscesses are like a pocket of infections that can cause minor breaks in the skin’s upper surface. The broken skin cause pus under the skin. Abscesses may cause scratches and cuts in the skin. Abscesses may also form in the cheek pouches of the hamster.

In cheeks, pouches form scratches or cuts due to the abrasive food materials or malnutrition. This infection may cause green poop in hamsters. And if it is not treated itself, it needs veterinary attention for flushing, treating with antibiotics, and draining.

Skin problems

Your hamster may suffer from several fur and skin infections. Your hamster may suffer from fungal infection ringworm, allergic dermatitis, which can occur on the fur or skin. These skin problems require to treat by the vet. Skin diseases also include loss of hair or fur in the hamster, especially in older.

If you notice any redness, lesions on the skin, flakiness, and uncommon scratching than usual, then you should take him to the vet. Loss of fur may be unusual and seasonal and mostly happens in old age.

You should also avoid cedar bedding because it can also cause skin problems or skin irritation. These skin problems disturb hamster health, leading to loss of appetite, which causes green stools.