Morton's neuralgia (Morton's neuroma) is caused by pressure and irritation of a cutaneous nerve that is chronically stressed when stepping on the sole of the foot.

Guyon's canal syndrome (sulcus) is a less frequent so-called strait syndrome (peripheral nerve damage caused by the compression of the nerve by surrounding structures) of the upper limb.

Elbow canal syndrome is the second most common so-called strait syndrome. The triggering moment is pressure on the ulnar nerve (nervus ulnaris) in the area of ​​the elbow joint.

Carpal tunnel syndrome is the most common so-called strait syndrome of the peripheral nerve on the upper limb, which affects about 10% of all people.