There are multiple times when a person may get a really odd taste in their mouth from something inedible. A metallic taste is something that many people have experienced at some point. Parageusia is the medical name for a specific type of taste disorder where the person experiences a persistent metallic taste in their mouth. This is an unpleasant taste and feeling that may develop out of the blue or gradually over time. It is important to understand just how taste works first in order to understand the causes of a metallic taste in the mouth.
Information. The sense of smell is actually controlled by the olfactory sensory neurons and the taste buds in the body. The olfactory sensory neurons are what is mainly responsible for what a person can smell. The nerve endings of the body are responsible for transferring any information that comes from the olfactory sensory neurons and the taste buds back to the brain. The brain then identifies the specific taste the person is experiencing. There are a number of factors that can affect this system dramatically. For many people, these certain issues can cause them to experience a metallic taste in their mouth.