Mononeuropathy Due to Watch Wearing
Yes, wearing a watch can cause mononeuropathy, particularly compression of the median nerve similar to carpal tunnel syndrome, especially when worn too tightly or for extended periods without breaks. 1
Mechanism and Clinical Evidence
- A recent 2023 study documented five cases of median nerve compression caused by smartwatches worn continuously (>24 hours/day) for several weeks, resulting in typical carpal tunnel symptoms and pathological sensory neurography findings 1
- Similar to cyclists who develop mononeuropathy of the deep palmar branch of the ulnar nerve due to compression from prolonged handlebar gripping, watches can create focal pressure points on peripheral nerves 2
- Compression neuropathies occur when external pressure is applied to a nerve for extended periods, leading to local ischemia, inflammation, and potential nerve damage 3
Risk Factors and Prevention
- Continuous wear without breaks increases risk of nerve compression 1
- Tight watch bands that restrict normal blood flow and create pressure on underlying nerves are particularly problematic 1
- Individuals with pre-existing peripheral neuropathy (such as diabetic neuropathy) may have increased susceptibility to compression injuries 4
- Those with decreased protective sensation may not notice early warning signs of compression 4
Symptoms to Watch For
- Numbness, tingling, or burning sensations in the wrist or hand, particularly in the distribution of the compressed nerve 3
- Pain that may radiate up the forearm 3
- Weakness in thumb or finger movements depending on which nerve is affected 3
- Symptoms that worsen with continued watch wearing and improve when the watch is removed 1
Prevention and Management
- Select appropriate watch band size that doesn't feel tight or uncomfortable 1
- Avoid continuous wear - remove watch periodically to allow circulation to normalize 1
- Alternate wrists when wearing watches for extended periods 1
- Loosen watch bands when continuous monitoring (such as for atrial fibrillation) is not needed 1
- For those with symptoms, complete removal of the watch led to improvement in both symptoms and electrophysiological findings 1
Special Considerations for At-Risk Populations
- Individuals with diabetes should be particularly cautious as they may have underlying peripheral neuropathy that increases susceptibility to compression injuries 4
- Those with autonomic neuropathy should be vigilant about proper watch fit as they may have altered sensation 4
- Anyone with a history of peripheral nerve issues should consider alternatives to tight-fitting wrist devices 4
When to Seek Medical Attention
- Persistent numbness, tingling, or weakness that doesn't resolve when the watch is removed 3
- Progressive symptoms despite modification of watch wearing habits 3
- Any motor weakness or muscle atrophy, which suggests more severe nerve compression 3
Proper watch fit and wearing habits are simple but effective measures to prevent this increasingly recognized cause of mononeuropathy as wearable devices become more prevalent.