Hello and thanks for researching this very important question...I am so sorry that your Tiny Friend is having this difficult and distressing experience!
A Hamster's teeth are meant to grow continuously. Part of how this works is controlled by hormones. Many problems in the body (usually cancers in rodents) can cause the hormone balance to move too far to one side, as it were.
Hormones also have to do with skin health, metabolism, brain health, and the function of the digestive organs.
Although your pet is younger than the "average" geriatric Hamster, her individual genes may have predisposed her to develop an "old-age" type of problem earlier than other Hamsters might. Her symptoms are quite concerning.
In your place I would do the following:
1) Make sure there is nothing in her cage that would be causing her an allergic or other immune reaction...use a paper-based type of bedding instead of wood shavings of any kind.
2) Have her examined by a veterinarian who can help you keep her teeth trimmed properly, and who may be able to figure out if she has a tumor on her thyroid, her pituitary gland, or an adrenal gland. A stool sample should be analyzed for the presence of parasites that can cause diarrhea and other health complications.Look for exotic mammal vet here
3) Try offering her some baby food rice cereal or mashed potato flakes to see if this helps her get a firmer stool pellet. Just a pinch with her regular ration, and adjust in tiny bits from day-to-day.
If you need additional support at this time, please "REPLY