Hamster has an oozing head bump but seems fine. Does he need a vet?

If Hannibal has an abscess, this is actually painful and can make him quite sick. Hamsters are good at hiding illnesses and pain because they are prey animals, so he may be feeling pretty badly without seeing obvious signs. The best thing for him is to have him seen by a vet in the morning. An abscess has to be treated by a vet.

It is hard to know just by looking at the pictures. It could be caused by trauma, infection, cyst, or a tumor. You could clean the area with a wound cleaner and see if it resolves. If it is a tumor or cyst it may continue to grow. The only way to know the exact cause is to have a vet do a needle aspirate.

I am sorry to hear about your hamster. With a swelling like this we would worry about a variety of problems including a cellulitis or inflammation/infection of the tissues, swelling due to trauma like a broken bone, swelling due to edema or disruption of lymph flow, or unfortunately a tumor. I would recommend having a veterinarian examine your hamster to determine the source of the swelling and the possible treatment options.

With the swelling, I would be concerned that Midnight has an abscess. I think it would be a good idea to take her into the vet for antibiotics. This should make the infection clear up quickly. Otherwise it could take weeks to heal and it can rarely become chronic which means it does not heal. I hope this helps!

Thank you for using Petco Pet Education Center, formerly Petcoach and congratulations on your new additions! I can see a darker area on Rosie's bottom, but it is difficult to determine if the lump is actually protruding. Hamsters do have pretty prominent scent glands, and this may be due to poor grooming of the secretions. Older hamsters have a tendency to develop papillomas, which may be uncomfortable and can cause the trouble walking. You should have Rosie seen by a vet to determine exactly what the growth is, they may take a small sample with a fine needle to send off as a biopsy. In the meantime, keep a close eye on the area for increase in size or bleeding, as these are indications for an emergency visit. I hope all is well!

It may be an abscess or mass. A visit to your veterinarian would be recommended. A fine needle aspirate can be done in the clinic to collect samples for pathology. If it is an abscess, it may be drained and antibiotics dispensed. If it a mass, benign or malignant, you can discuss treatment options with your veterinarian.

If it has grown rapidly, there is cause for concern. See your veterinarian for an exam. A simple needle aspirate biopsy submitted for pathology can frequently determine the makeup of most lumps.