it can. If your sick sometimes your nasal passages get to dry, and that can cause them to bleed. Use saline nasal spray and see if it improves.
Cold weather, dry weather...It dries out your nose.
Yes :) it is very serious she will die if she keeps having nose bleeds :) get her to stop having them :P
First thing what you can do is to press with a tissue on your nose. After be sure you stay in a comforable position with a cold compress over the nose.
I have never known mothballs to cause nose bleeds.
Nose bleeds are caused by heat, you blowing your nose too hard, or injured vessels in the nose.
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Don't pick your nose.
Trauma is normally the usual cause of dog nose bleeds or you could have just knocked a vessel in his nose, much like why humans have nose bleeds. Either way, I would advise you to be more careful with your dog from now on. If it happens again or any other worrying symptoms appear, go see a vet, it could be more serious if nose bleeds or other abnormal bleeding happen often. Another reason for nose bleeds can be Aspirin, so if you give your dog anything like this, I'd suggest stopping.
Dry air, possibly, but being physically dehydrated should not induce nose bleeds.
An overly dry nose can cause nose bleeds. There are nasal moisturizing gels you can pick up over the counter to help relieve this. If it continues to be a problem, go ahead and make her a doc appointment.
A human body has approximately 5.5 liters of blood. A nose bleed will at maximum a couple of millimeters of blood. In order to bleed out by nose bleeds, you would need to have thousands of nose bleeds in rapid succession.