Originally Posted by Concussion

There can be well over 30 different reasons/causes of hyperactive reflexes.

Most commonly: Head trauma; spinal cord injuries/trauma, cervical spinal cord injuries/trauma; 'pinched nerves' ; and others involving fractures of the spinal structures etc.

Sometimes : Too much caffeine.

Undiagnosed: Depression, Anxiety

And then the Uncommon and/or rare - hyperthyroidism and others, which you could google , or ask your practitioner. Check this site: Hyperreflexes


The examiner may have struck the reflexive site more firmly than before. Was one side more reflexive than the other? - these are also things that need considering.

Tests should include Blood for complete Chemistry, including Thyroid studies of TSH, T3, T4; Vitamin B12 level; is there concern of anything else - not knowing the history I cannot presume for other testing requests.

As you are visiting this site, can I presume you have had a neck or head injury?

Could you present your injury details for us to offer up any advice, information and suggestions?

Best Wishes.