Does anyone know what would cause a metal taste in your mouth? This is a serious ? Not trying to be funny.?

Below is the answer posted to a similar question some time ago and it gives quite a detailed explanation of what the problem could be. Read its content and see if anything seems familiar and could apply in this case. Good luck.

The following has been copied from a previous answer:

Blood cells contain hemoglobin which carries oxygen. When blood breaks down, iron is released and causes a metallic taste in mouth. Bleeding can be from the gums, sinuses or nose. The taste can get especially bad when someone has post nasal drip and the dried blood sticks to the back of the throat. If bleeding gums are the cause there is often bad breath associated with the bad taste.

Another uncommon reason for a metallic taste in mouth is due to small electric currents in the mouth. When two types of metals are used in two different dental fillings a battery can be created. Some believe that it's due to the mercury leakage from dental silver/mercury fillings.

Many oral or IV medications such as thyroid medicine, penicillin, and lithium can give a metallic taste in mouth. When someone is allergic to a specific food, the food can often be detected even in extremely small amounts. Food allergies, such as with sulfur dioxide, can also cause this. Some gastrointestinal disorders can be aggravated by food allergies and cause burping, dry mouth, thirst, rectal itching and a metal taste. High protein diets can cause benign dietary ketosis. This has also been associated with a metal taste.

Chemotherapy, radiation therapy, or cancer itself can cause a metallic taste in mouth. It has also been associated with B 12 deficiency, zinc deficiency, Bell's palsy, Strep throat and Sjogren's disease along with anything that causes dry mouth.

http://www.atlantadentist.com/metallic_t%E2%80%A6

AND:

A metallic taste in the mouth can be caused by infections of the mouth or teeth, skin conditions that affect the mucous membranes in the mouth such as lichen planus, or other problems, such as Crohn's disease.

A metallic taste also may be caused by a substance present in the mouth. Medications that are chewed, rather than swallowed, may cause a temporary metallic taste at the back of the tongue. Other medications, such as Flagyl, tetracycline, penicillamine, Biaxin, ethambutol, biguanides, or allopurinol, can cause a metallic taste because they get into the mouth through salivary secretions or directly from the blood.

http://www.webmd.com/hw/health_guide_ato%E2%80%A6

4 years ago

red blood cells contain a lot of iron. If the RBCs are leaking into your mouth and being damaged to the point of breaking, you could be tasting the iron from inside the cells. Basically, this does seem possible. Certain food and medicines can also cause a metallic taste in the mouth. This is not uncommon. Has your dentist checked your gums lately? If not, you should have that checked out.

Blood.