Carpal Tunnel Syndrome: Symptoms, Causes & PT Treatment
Updated October 20261 minute read
Carpal tunnel syndrome happens when the median nerve is compressed at the wrist, causing numbness, tingling, and sometimes pain in the thumb, index, middle, and half of the ring finger — classically worse at night. Mild to moderate cases often improve with splinting, activity changes, and nerve and tendon mobility exercises. Constant numbness with thumb-muscle wasting or weakness is more serious and needs prompt medical evaluation, as it can become permanent.
What is carpal tunnel syndrome?
The carpal tunnel is a narrow passage at the wrist where the median nerve travels. Pressure on the nerve causes the symptoms.
Symptoms
The hallmark is numbness and tingling in the thumb, index, middle, and half the ring finger, often worse at night or with sustained gripping or wrist positions. People often shake the hand to relieve it; grip weakness can develop.
What causes it / risk factors
Repetitive hand/wrist use, sustained wrist postures, pregnancy, diabetes, thyroid conditions, and wrist anatomy all contribute.
How it's diagnosed
A clinician uses your symptom pattern and specific tests; nerve studies help confirm and grade more significant cases.
Physical therapy treatment
What a PT does. Your therapist offloads the nerve with splinting and ergonomic changes and uses nerve and tendon mobility exercises. Exercises & progression (overview). Night splinting, activity/ergonomic changes, and nerve and tendon gliding. Conservative care helps many mild-to-moderate cases. Recovery timeline. Mild cases may improve over weeks; results vary by severity.
Treatment options compared
Splinting and conservative care are first-line for mild-to-moderate cases. Injections help some. Surgery (carpal tunnel release) is considered for moderate-to-severe cases or when conservative care fails — especially with muscle wasting.
Red flags
Constant numbness, thumb-muscle wasting, or significant weakness needs prompt medical evaluation, as nerve damage can become permanent.
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Frequently asked questions
Many mild-to-moderate cases improve with splinting and conservative care.
Sources (5)
- MedlinePlus: Carpal tunnel syndrome. — NIH/MedlinePlus
- Erickson M, et al. Hand Pain and Sensory Deficits: Carpal Tunnel Syndrome. J Orthop Sports Phys Ther. 2019. — PubMed
- AAOS OrthoInfo: Carpal Tunnel Syndrome. — AAOS OrthoInfo
- Page MJ, et al. Exercise and mobilisation interventions for carpal tunnel syndrome. Cochrane Database Syst Rev. 2012. — Cochrane
- Page MJ, et al. Splinting for carpal tunnel syndrome. Cochrane Database Syst Rev. 2012. — Cochrane
This article is for education only and isn't medical advice. Always talk to a licensed clinician about your specific situation.