Many dog people would say their canine companions are their best friends, but for a growing number of individuals with specific physical, neurological or mental health needs, different types of service dogs are also invaluable partners in day-to-day life. Legally, most of these types of service dogs are allowed in places where pet dogs are not. Unfortunately, the practice of non-disabled people passing off pet dogs as different types of service dogs has eroded the rights of real assistance dog handlers, especially those with invisible disabilities.

“Don’t make assumptions,” says Toni Eames, president of the International Association of Assistance Dog Partners. “If you see a person who can walk and talk, and they’re sighted, and they’re hearing, the dog may be alerting to diabetes or seizures.”

According to Eames, those tasks may be done by a breed who doesn’t fit the popular image of a service dog as a retriever or a German Shepherd Dog. As the list of what service dogs do grows, so does the diversity of service dog breeds helping disabled people.

Let’s take a look at 10 types of service dogs, from the well-known to the newly developed:

The 10 Types of Service Dogs

1. Guide dogs

Assistance dogs who lead visually impaired and blind people around obstacles are one of the most commonly known types of service dogs. Labrador Retrievers, Golden Retrievers, and Lab/Golden hybrids are often dog breeds chosen as guide dogs, although other breeds, such as Poodles, can also be well suited to be this type of service dog.

According to the Canadian National Institute for the Blind, guide dogs have been helping visually impaired people for centuries, and their use may date back to Roman times. Many laws and pieces of legislation regarding service animals were original written with an emphasis on guide dogs. While people often expect guide dogs and other assistance dogs to wear vests, the Americans With Disabilities Act does not require a vest, although they’ll often be wearing a special harness with a handle on it.

2. Hearing dogs

For people with hearing impairments, service dogs assist by alerting to noises such as alarms, doorbells or crying babies. When the dog hears the sound, they’ll touch their human and lead toward the noise.

Labradors and Golden Retrievers are dog breeds that are often selected as hearing dogs, but many other breeds, including Cocker Spaniels and Miniature Poodles, have been successfully trained to alert as a hearing dog. According to Assistance Dogs International, small-to-medium mixed breeds acquired from animal shelters are often trained as hearing dogs, with Terrier mixes, Poodles, Cockers, Lhasa Apsos, Shih Tzus and even Chihuahuas being selected for personality and temperament.

3. Mobility assistance dogs

These types of service dogs can perform a wide range of tasks for people with a wide range of mobility issues. According to Service Dogs of America, mobility assistance dogs can bring objects to people, press buttons on automatic doors, serve as a brace for people who are ambulatory or even help pull a wheelchair up a ramp. These dogs help people increase their independence and confidence.

People with spinal cord injuries, brain injuries, and arthritis are among those who benefit from a mobility assistance dog. While the dogs must be large enough to support their human partner, many different can be mobility assistance dogs.

4. Diabetic alert dogs

Also known as DADs, these service dogs can provide independence and security by alerting to chemical changes in blood sugar. The scent changes associated with hyperglycemic or hypoglycemic events in diabetics are imperceptible to humans, but not to dogs. These service dogs alert their people to blood sugar highs and lows before the levels become dangerous.

When a diabetic alert dog alerts, his human knows to test his blood. Then he or she can inject insulin or ingest a dose of glucose before his blood level gets dangerous. Many of these dogs are trained to alert others in the household or set off an alarm system if their human needs medical help.

5. Seizure alert dogs

Seizure alert dogs are one of the controversial types of service dog. They react with a specific type of behavior right before her human has a seizure. The ability to alert to seizures seems to be a natural ability for a small number of dogs, although some neurology experts say there is no reliable evidence to suggest that dogs can reliably predict seizures.

On the other hand, many patients, families and trainers insist their dogs do accurately predict and alert to oncoming seizures, and stories about pet dogs who alert without training have received a lot of media attention. Some epilepsy organizations, like the BC Epilepsy Society, state that it’s not possible for dogs to be trained to alert to seizures, but some dog training agencies (including UK-based Support Dogs and 4 Paws For Ability in the U.S.) say it is possible to train a dog to alert.

6. Seizure response dogs

Not to be confused with seizure alert dogs, seizure response dogs provide help to a person experiencing an epileptic seizure. These dogs bark for help or to press an alarm system during a person’s seizure. They can also get a person out of an unsafe place. And may bring medicine or a phone to a person who is coming out of a seizure.

7. Psychiatric service dogs

These types of service dogs assist people who are suffering from issues like depression, anxiety and most often post-traumatic stress disorder. PTSD can afflict people after they’ve served in combat, worked as a first responder, or experienced abuse, natural disasters, terrorism and other life-altering events, such as car crashes.

The human handlers in this category can feel hyper vigilant about their safety, and service dogs can make them feel safer by doing things like entering the home before the human, and turning on the lights with a foot pedal. These dogs can also help PTSD sufferers who feel overwhelmed in public places by creating a physical barrier between the handler and others, giving the handler more personal space. Many PTSD sufferers find that having a service dog to care for forces the human to also take care of themselves, by getting out into the world and getting exercise with their dog.

8. Autism support dogs

For kids on the autism spectrum, these dogs provide a sense of predictability as the children navigate social settings. The dogs can be a big help for kids who have trouble connecting with classmates. The canine acts as an icebreaker in social situations. They improve the child’s quality of life by reducing isolation and comforting the child in stressful times. These dogs are also trained to keep children from running away and can track children if they do run off.

9. FASD service dogs

An emerging category of service dog, these dogs support children who were exposed to alcohol prenatally, and have been diagnosed with fetal alcohol spectrum disorders (FASDs). These children may have physical and mental difficulties, as well as behavioral problems and learning disabilities. According 4 Paws for Ability, FASD dogs are trained similarly to autism service dogs. They can also be trained to interrupt a repetitive behavior.

10. Allergy detection dogs

With the rise in food allergies has come another type of medical service dog. Allergy detection dogs are trained to sniff out and alert to the odor of things such as peanuts or gluten. Often partnered with children, allergy detection dogs can be trained to alert to allergy-inducing smells at school. Allergy detection dogs provide kids with a greater sense of independence and giving their parents a greater sense of security. While it’s clear that some dogs can be successfully trained to alert for allergies, this category of service dog attracted negative attention when some parents said they paid for dogs that couldn’t care less about a deadly peanut.

Other kinds of working dogs, including therapy dogs and emotional support dogs, are not classified as types of service dogs as they’re not trained to perform a specific task to help their handlers. In most jurisdictions, these kinds of dogs are not afforded the same privileges as service dogs.

Read more about service dogs and types of service dogs:

• Lulu the Therapy Dog Comforts Mourners at a New York Funeral Home
• “Lucky Dog” Star Brandon McMillan Also Trains Service Dogs for Disabled Veterans
• A Seizure Assistance Dog Named Flame Is a Comic Book Hero

About the author: Heather Marcoux is a freelance writer in Alberta, Canada. Her beloved Ghost Cat was once her only animal, but the addition of a second cat, Specter, and the dog duo of GhostBuster and Marshmallow make her fur family complete. Sixteen paws is definitely enough. Heather is also a wife, a bad cook, and a former TV journalist. Some of her friends have hidden her feed because of an excess of cat pictures. If you don’t mind cat pictures, you can follow her on Twitter.

Featured Image Credit: Chuck Wagner / Shutterstock.