What is the term for dogs trained to detect medical conditions like seizures or low blood sugar?

The story behind the answer

Medical alert dogs are specifically trained to detect changes in a person’s body—such as drops in blood sugar, impending seizures, or shifts related to conditions like POTS—often by sensing subtle odor changes (volatile organic compounds) or behavior cues. They then alert their handler by pawing, nudging, fetching medication, or activating an alarm. That makes “Medical alert dogs” the precise term, whereas “service dog” is the broader category; therapy and emotional support dogs provide comfort but aren’t trained for medical detection.

Fun fact: A dog’s nose can detect odors in parts per trillion, helping them notice biochemical shifts long before humans do. Many are trained using scent samples and positive reinforcement. Remember it this way: medical alert dogs “alert” to medical changes—ALERT is in the name—while therapy dogs “comfort,” and emotional support dogs “support.”