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Paresthesia

German: Parästhesie

1 Definition

Paresthesia is an unpleasant, sometimes painful sensation associated with tingling, numbness, limbs "going to sleep", or disorders of thermal sensation that are not caused by adequate stimuli.

ICD10-Code: R20.2

2 Pathophysiology

Paresthesia can be caused by different mechanisms, e.g. by

3 Causes

3.1 Transient paresthesia

Temporary (transient) paresthesia, e.g. legs falling asleep, is a relatively common occurrence. This kind of paresthesia is caused by the temporary loss of blood flow to the affected limb which leads to an insufficient supply of nerve cells with oxygen and glucose, causing a dysfunction of nerve conduction.

Further causes of transient paresthesia:

3.2 Chronic paresthesia

Chronic paresthesia is caused by permanent dysfunction of nerve cells, e.g. in the context of neuropathy. Further possible causes are:

4 See also

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