Well, if he looks "thinner"...more like smaller, then you should make sure they have a lot of food. I have a Robo dwarf hamster and he does the same thing. He's fine because when he wakes up in the day he eats and at night he exercises. Maybe you should even take the wheel out for a little and see what happens.
Go to the local pet hospital to have a licensed veteranarian answer that question.
Why am I losing weight during post menopause
sweat.
I say go by the weight of the hamster, or less.
if hamsters stop drinking water , they would probely did , or u can try peach juice but if that doesn't work , then its gonna die !
There is no patron saint of losing weight.
Adult male hamsters normal weight is 80-100 gm and adult females is the same.Newborn hamsters normal weight is 2 gm.
If you mean weight wise, it could be because he is sick and is losing weight or is just exercising too much. If you're talking length wise, he may just be getting older. :)
your weight is unnoticeble while climbing stairs because you are resisting the gravity
A lack of motivation prevents many people from losing weight.
You will start to loose weight sometimes during a pregnancy, this is normal. When you get sick and throw up you can loose weight from it. Talk to your doctor about weight loss.
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