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Brain damage often affecting the corpus callosum.

Surgery (like a corpus callosotomy, deep brain stimulation or removing a tumor in the frontal lobe)

An underlying condition or degenerative desease.

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There isn’t a specific test to diagnose alien hand syndrome.

Physical test by doctor.

MRI to look for lesions in your brain.

Medical history analysis

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Early Stage: mptoms usually appear suddenly after a brain injury, stroke, or surgery.

Middle Stage: The alien hand may become more active and unpredictable and the patient may feel disconnected (at this point there may also be emotional distress).

Advanced Stage: If due to a static brain injury, symptoms may plateau or slightly improve with therapy. If linked to a progressive neurological disease, the condition may worsen as brain degeneration continues.

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Text:

https://my.clevelandclinic.org/health/diseases/alien-hand-syndrome

Images:

https://www.mdsabstracts.org/abstract/the-alien-hand-syndrome/

https://www.brainandlife.org/articles/what-is-alien-hand-syndrome

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The affected hand moves on its own.

The cordination of one hand with respect to the other decreases.

The hand may try to interfere with normal actions.

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There is no cure for Alien Hand Syndrome, but treatments help manage symptoms and improve hand control.

A provider may treat involuntary movements with antiseizure medications or neuromuscular blocking agents.

If your affected hand grasps objects often, you can place a ball or soft object within reach to distract it.