Years ago a landmark study proved that not all pinched nerves hurt. By looking at multiple cadavers, researchers found many flattened, pinched, crushed nerves that caused no evidence of pain in the person's medical records (Neary and Ochoa 1975). That really puzzled the medical community because the popular thought, at the time, was that all pinched nerves hurt . Since that theory was disproven, scientists have been trying to explain why some nerve damage hurts and some does not.
Within the past 15 years, many studies have shown the effects of inflammation on the nerve. Without any source of physical, mechanical pinching, a nerve can be damaged by the inflammatory chemicals. Such chemicals are equivalent to throwing acid on a nerve. That is why steroid injections work. The steroids block the chemical reaction and cool the nerve. However, some people know that even injections do not help all types of nerve pain. So, there must be more to this puzzle; inflammation is not the only...
Neuropathy - distal median nerve
Pain in the wrist or hand that wakes you up at night
May be severe Pain may be felt in other areas, for example in the upper arm (this is called referred pain)
Sensation changes in the thumb and pointer (index), middle, and part of the ring fingers, such as:
Weakness of the hand that causes you to:
Drop things Have difficulty grasping objects
Signs and tests
Your doctor will examine your wrist and ask questions about your medical history. The examination may show decreased sensation in the thumb side of the hand. This is called the "radial" side. There may be weakness of the thumb and difficulty using it to pinch.
Tests that reveal distal median nerve dysfunction may include:
Nerve conduction tests
Tests are ...
Hammer toe is a deformity of the toe, in which the end of the toe is bent downward.
Causes, incidence, and risk factors
Hammer toe usually affects the second toe. However, it may also affect the other toes. The toe moves into a claw-like position.
The most common cause of hammer toe is wearing short, narrow shoes that are too tight. The toe is forced into a bent position. Muscles and tendons in the toe tighten and become shorter.
Hammer toe is more likely to occur in:
Women who wear shoes that do not fit well or have high heels
Children who keep wearing shoes they have outgrown
The condition may be present at birth (congenital) or develop over time.
In rare cases, all of the toes are affected. This may be caused by a problem with the nerves or spinal cord.
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