Underactive thyroid, maybe. Did you actually see it happen? Dogs can pass out from too much pressure on the throat area...say if the leash was too tight.
Gums may turn white because there is a lack of blood flow. This can cause numbness as well. Gums can also turn white due to gum disease.
There are actually 13 different conditions of the mouth that can cause pain in the gums with white patches. Some of these conditions include toothbrush irritation, a virus infection, canker sores, and thrush.
Could be several things: gastric ulcers, swallowed a foreign object... The vomiting blood is stomach related, hence the dog would also not want to eat. The white gums are a result of dehydration which occurs because of the desire to not drink as well as eat. ~FloKIng Minneapolis, MN
having white gums is unhealthy. if the dog is still happy and not hurt while eating, than its not having any pain. you should still get them treated by a vet or it will cause serious damage upon the dog. HOW COULD YOU DO THAT TO THE POOR DOG.
because you brush your teeth everymorning if you wakeup
what can cause a gum blister above a crown inlay 6 months later
Several diseases have bleeding gums as a symptom. The most common diseases would be periodontitis, gingivitis, or gum disease. It is important to rule these out before you go on to looking for more exotic causes of bleeding gums. See a good dentist. Pregnancy can cause bleeding gums, as can birth control pills. This has to do with fluctuating hormone levels. In fact, almost any hormone therapy can cause bleeding gums. Certain anti-seizure medications such as dilantin can cause bleeding gums. Bleeding gums can be associated with certain vitamin deficiencies, such as vitamin C or vitamin K. The latter indicates a problem with the liver. Alcoholism can be a source of bleeding gums. Cancer or cancer treatments can cause bleeding gums. See a dentist and rule out the most common sources of bleeding gums first.
Crest White is good for soothing gums, but only in moderation.
Anemia
Most tooth bleaching products are not harmful to your gums. If you notice any soreness or changes in your gums after using a tooth bleaching product I would stop using it and contact your dentist right away.
I would suggest going to the dentist. Those white strips can cause further irritation. They aren't recommended for people with gum or other oral issues.
If you had pyorrhea, the part of your body that would hurt is your gums. Pyorrhea is a severe form of gum disease that can cause inflammation, pain, and infection in the gums, leading to symptoms such as gum recession, bad breath, and loose teeth.