How to Sign "Autism" in ASL

The short answer

The most dependable way to say "autism" in American Sign Language (ASL) is to fingerspell it: A-U-T-I-S-M. Fingerspelling uses the manual alphabet to spell an English word letter by letter. Any ASL user can read it, and it carries no regional or social connotations.

There are also single signs for autism, but no single version is universal. Different signs are used in different places and communities. Some older signs have been criticized by autistic Deaf people for portraying autism negatively. This guide doesn't describe any specific sign because no verified source was available for it. If you want a sign rather than fingerspelling, learn it from a Deaf signer or a reputable ASL video dictionary, and ask the person you're talking with which sign they prefer.

Check which sign language you need

ASL is used mainly in the United States and parts of Canada. It is a separate language from British Sign Language, Russian Sign Language and other national sign languages, and both its vocabulary and its manual alphabet can differ. If the person you're communicating with uses a different sign language, the ASL fingerspelling below may not match theirs.

How to fingerspell A-U-T-I-S-M

Use your dominant hand, held at about shoulder height with your palm facing the person you're signing to. Form each letter in place, moving smoothly from one to the next without bouncing your hand between letters.

• A: Make a fist with your thumb resting against the side of your index finger.
• U: Raise your index and middle fingers straight up, pressed together. Hold your other fingers down with your thumb.
• T: Make a fist with your thumb tucked between your index and middle fingers.
• I: Raise your pinky straight up. Curl your other fingers into a fist with your thumb across them.
• S: Make a fist with your thumb wrapped across the front of your fingers.
• M: Fold your index, middle and ring fingers down over your thumb, so the thumb tip sits under the ring finger.

T, S and M are easy to confuse because all three are closed hands. The difference is where your thumb sits. Practice those three slowly until each position feels distinct.

Choosing between fingerspelling and a sign

• Use fingerspelling when you don't know the other person's preferred sign, when accuracy matters more than speed, or when you're unsure whether a sign you've seen is current or respectful.
• Use a sign once you've learned it from a trustworthy source and confirmed it's the one your conversation partner or local community uses.
• If you're signing about an autistic person, follow their preference for both the sign and the wording.

Checking your signing on camera

If you're practicing or signing in a video call, a webcam that works isn't automatically a camera that shows fingerspelling clearly. Before the call, open your camera preview and check these points:

• Framing: your hand, face and upper body should be in view, with room above your shoulder where you fingerspell. Move back from the camera if your hand leaves the frame.
• Lighting: light your hands and face from the front. A bright window behind you can turn your hands into silhouettes.
• Background: a plain physical background that contrasts with your skin tone makes handshapes easier to read. Virtual background and blur effects can smear or cut off fast hand movements, so test them before relying on them.
• Pace: fingerspell a little more slowly than in person. Video compression and low frame rates can blur quick transitions between letters.

To verify the result, record a short clip of yourself fingerspelling A-U-T-I-S-M and play it back. Check that each letter is clearly visible, especially T, S and M. If possible, ask a fluent signer to confirm that they can read it.

What this guide can't confirm

No verified evidence was available about specific autism signs, how widely each is used, or which ones particular communities prefer. For those details, rely on Deaf ASL instructors, Deaf-led ASL dictionaries and, above all, the autistic Deaf people you're communicating with.