When your hand loses strength and numb fingers and electric shocks disrupt everyday life
Everyone knows the tingling in the little finger after knocking their elbow. For you, it keeps returning more often, without an injury. It wakes you at night when you sleep with your hand under your head. It gets worse when you hold a phone to your ear for a long time. This may be compression of the ulnar nerve at the elbow.
What is actually happening?
The ulnar nerve runs from the brachial plexus through the entire arm and, at the elbow, passes through a narrow canal (groove) just beneath the skin on the inner side of the elbow. This is exactly where hitting your elbow causes the familiar stabbing tingling. At this point the nerve can be compressed as if passing through a narrow corridor. When this prolonged pressure occurs too often or lasts too long, the nerve becomes irritated and stops conducting signals properly.
It is most often caused by keeping the elbow bent for a long time: during sleep, long telephone conversations, or repeatedly leaning on the inner side of the elbow. Sometimes degenerative joint changes further narrow the canal; more rarely, the nerve slips out of place when the elbow bends.
How can you recognize it?
- tingling and numbness in the little finger and half of the ring finger, worsening at night or during a long telephone conversation with the phone at your ear,
- a weakened grip, for example difficulty squeezing someone’s hand firmly in greeting,
- the hand loses sensation when you sleep with the elbow strongly bent,
- the fingers begin to contract slightly, making it harder to fully open the hand.
Why you should not wait
A nerve exposed to prolonged pressure gradually loses its ability to conduct signals properly and may become damaged. Temporary tingling eventually becomes constant numbness, and the muscles supplied by the nerve become weak.
In advanced cases, the hand muscles atrophy, giving the hand a characteristic claw-like shape, and sensation may be lost. A longstanding advanced condition can eventually become irreversible. A nerve decompressed early returns to work much more reliably than one compressed for years.
How we help
We begin with a consultation and ultrasound, which show whether the ulnar nerve is thickened at the compression site and whether it shifts out of the groove when the elbow bends. A nerve conduction study confirms the degree of nerve damage and whether weakness of the hand muscles is actually progressing.
For milder symptoms, we begin with non-surgical treatment—mainly tailored rehabilitation, anti-inflammatory medication, and avoiding prolonged elbow flexion.
When the nerve is displaced, structurally damaged, or weakness progresses despite treatment, we surgically release it from the compressing tissues through a small incision. If instability is causing the symptoms, we move it to a new, more stable position at the front of the elbow.
There is one goal: fingers that stop going numb and a hand that regains its strength.
Book a consultation
If you recognize these symptoms, do not wait until the numbness becomes constant. Make an appointment for a consultation. We will assess how severely the nerve is compressed and tell you whether changing habits is enough or surgical decompression is needed.

