Cubital Tunnel Syndrome Treatment in Seoul Diagnosed in English
Tingling in your ring and little fingers can come from the ulnar nerve being squeezed at the elbow. Our orthopedic surgeons in Gangnam confirm the cause and treat it before nerve damage builds up.
Gangnam Nanoori Hospital, at 731 Eonju-ro near Hakdong Station (Line 7, Exit 10), treats cubital tunnel syndrome, or ulnar nerve compression at the elbow, in its orthopedic Joint Center. Care usually starts with an exam and nerve tests, then activity changes, night splinting and therapy, with surgical nerve release for persistent or worsening cases. Book with an English-speaking coordinator by WhatsApp at +82-10-6290-9796.
What causes cubital tunnel syndrome?
The ulnar nerve, often called the funny bone nerve, runs through a narrow channel on the inner side of your elbow. When the elbow bends, the nerve stretches and the space tightens. Ongoing pressure or stretch irritates the nerve. It is the second most common nerve compression in the arm after carpal tunnel syndrome.
Prolonged elbow bending
Sleeping with arms bent or holding a phone for long periods stretches the nerve and raises pressure on it.
Leaning on the elbow
Resting your elbow on a desk, armrest or car window presses directly on the exposed nerve.
Nerve slipping out of place
In some people the nerve snaps over the bony bump when the elbow bends, irritating it repeatedly.
Old injuries or arthritis
Previous elbow fractures, bone spurs or swelling can narrow the tunnel.
Repetitive arm work
Repeated bending, gripping or throwing can aggravate the nerve, especially in overhead athletes.
Tight surrounding tissue
Thickened bands or muscle over the tunnel can compress the nerve as it passes through.
Symptoms of cubital tunnel syndrome
Symptoms often come and go at first and are commonly worse at night or when the elbow is bent.
Common symptoms
- Numbness or tingling in the ring and little fingers
- Aching on the inner side of the elbow
- Symptoms that worsen with the elbow bent
- Weaker grip and pinch
- Clumsiness with fine tasks like buttons or typing
- Thinning of the muscles between the thumb and index finger in later stages
Seek care promptly if you have
- Constant numbness that does not go away
- Visible muscle wasting in your hand
- Rapidly worsening weakness
- Numbness or weakness after an elbow injury or fracture
Ongoing pressure can cause lasting nerve damage, so do not wait; in a life-threatening emergency in Korea, call 119.
Sudden weakness on one side of the body, facial drooping or slurred speech is not an elbow problem: call 119 immediately. For other elbow symptoms, see our Elbow Center overview.
How cubital tunnel syndrome is diagnosed
Your surgeon checks sensation, strength and how the nerve behaves when the elbow bends, and makes sure the problem is not coming from your neck.
| Test | What it shows |
|---|---|
| Physical exam | Tingling when tapping the nerve, finger sensation, grip and pinch strength |
| Nerve conduction study | Whether and where the ulnar nerve is slowed, and how severe it is |
| X-ray | Bone spurs, arthritis or old fractures narrowing the tunnel |
| Ultrasound | Nerve swelling and whether the nerve slips out of its groove |
| MRI of the neck | Used if a pinched nerve in the neck is a possible cause |
Symptoms from the neck can mimic cubital tunnel syndrome. If needed, your surgeon can arrange a neck assessment with our Spine Center.
Treatment options for cubital tunnel syndrome
Mild cases often improve with simple changes. Surgery is considered when symptoms persist or the nerve shows signs of damage.
Avoid pressure and bending
Do not lean on your elbow, use a headset for calls, and keep your arm straighter during desk work and sleep.
Night splint or padding
A splint or a towel wrapped around the arm keeps the elbow from bending sharply while you sleep.
Physical therapy
Therapists teach posture changes and gentle nerve gliding exercises and help maintain hand strength.
Regular monitoring
Your surgeon tracks sensation and strength. Worsening weakness or muscle thinning is a reason to consider surgery sooner.
Nerve release surgery
Surgery releases the tissue over the nerve and, in some cases, moves the nerve forward to reduce stretch.
Releasing a squeezed ulnar nerve
Surgery gives the nerve more room so it can recover. Numbness often improves over weeks to months.
Simplified medical illustration for education only, not a patient image. Results vary by condition and individual; your specialist will explain what to expect for your case.
Your Specialists
Care at this clinic is provided by Nanoori Joint Center orthopedic surgeons. Tap a doctor to see their full profile.
Common Questions
Will cubital tunnel syndrome go away on its own?
Mild cases often improve once you avoid leaning on the elbow and keep it straighter at night. If symptoms are constant or you notice weakness, see a specialist, because long-term pressure can cause lasting nerve damage.
How long is recovery after nerve release surgery?
Many people return to light tasks within a couple of weeks. Tingling may improve over weeks, but numbness and strength can take several months to recover, and severe long-standing cases may not recover fully.
Is a nerve conduction study painful?
It causes brief, mild discomfort from small electrical pulses and, if needed, a fine needle. Most people tolerate it well, and it gives valuable information about the nerve.
Can I have treatment while visiting Seoul?
Yes. Our coordinators can arrange an assessment and testing. If surgery is advised, your surgeon will explain follow-up and stitch care so you can plan your travel.
Can I use my insurance?
Foreign residents enrolled in Korean National Health Insurance (NHIS) can use it at Nanoori. For international insurance, we provide billing documents for your claim; coverage depends on your policy.
How is this different from carpal tunnel syndrome?
Carpal tunnel affects the median nerve at the wrist and mainly the thumb, index and middle fingers. Cubital tunnel affects the ulnar nerve at the elbow and the ring and little fingers.
Tingling fingers? Talk to a specialist in English
Message our international coordinators on WhatsApp at +82-10-6290-9796 to book a visit in Gangnam.
Related Care
Last updated October 2026. This page is for general information and does not replace a medical consultation. Contact us · Gangnam Nanoori Hospital home
