Can Hamsters Get Fleas? Here’s What You Need to Know

I. Causes and Symptoms of Infestation
About the Parasite
Fleas are external parasites that can infest the skin of all mammals. Hamsters are prone to flea infestations if their living conditions are poorly maintained—such as a dirty environment or infrequently changed bedding. Common symptoms of an infestation include:
Frequent scratching, red or irritated skin, or even ulcers
Tiny black specks in the fur (flea feces or the fleas themselves)
Gradual weight loss or anemia over time
Transmission Routes
Infestations mainly occur through contact with a contaminated environment or other flea-carrying animals. Fleas present in the home can also spread to hamsters.
II. Treatment Methods
Physical Cleaning
Soak the hamster in warm water (38–40°C) for 3 minutes; fleas will float to the surface.
Use a fine-toothed flea comb to remove fleas from the fur.
Environmental Disinfection
Thoroughly replace cage bedding and disinfect the cage by exposing it to direct sunlight.
Choose bath sand containing diatomaceous earth to help repel parasites.
Medicated Deworming (Use with Caution)
Use pet-specific dewormers, strictly following dosage instructions (e.g., spot-on application of 0.05% ivermectin solution).
Consult a veterinarian before treating pregnant hamsters or young pups.
III. Prevention Tips
Wash the cage weekly with water above 60°C and keep the environment dry.
Change bedding regularly to avoid dirt buildup in hard-to-reach areas.
Wash hands immediately after handling your hamster to reduce the risk of cross-infestation between humans and pets.
Note: Occasional scratching is normal for hamsters as part of their grooming routine. Look for additional symptoms to determine if a flea infestation is present.