A stroke or nerve damage would cause a lack of sensation in the fingers.
Cancer.
what diseases causes stubbed fingers, protruding upper jaw
Yes. Behind medial epicondyl of humerus, there is ulnar nerve. If you press it you get shock like feeling in your outer fingers. This happens because muscles supplied by this nerve are stimulated by your action.
when you crack your fingers, your fingers can't bend when you're older.
when you crack your fingers, your fingers can't bend when you're older.
"The causes of vibration white finger are the continual use of heavy machinery and can become a permanent disease. Some symptoms of the disease are numbness in the fingers, tingling sensations, coldness and the feeling of pins and needles."
gas
frostbite
Maybe dyshidrosis
At right side of the keyboard there are shortcut keys. They are are used by right fingers.
Be feeling. When you feel something very well you can get an idea of what it is.
treatment for burning sensation between fingers