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The causes of this condition have not yet been completely defined. [3] Patients are usually older persons. [4] The correlation of notalgia paresthetica localization with corresponding degenerative changes in the spine suggests that spinal nerve impingement may be a contributing cause. According to Plete and Massey, "The posterior rami of spinal ...
[1] [2] [3] In the elderly, xerosis, is the most common cause for an itch due to the degradation of the skin barrier over time. [4] However, the cause of senile pruritus is not clearly known. [5] Diagnosis is based on an elimination criteria during a full body examination that can be done by either a dermatologist or non-dermatologist physician ...
The concept of autoimmunity, where the body's immune system attacks its own cells, was not widely accepted until the 1950s. As the understanding of the immune system and its role in disease evolved, researchers began to explore the possibility that some cases of chronic urticaria could be driven by autoimmune processes. [16]
In a normal case, the swelling will decrease without treatment within 15–30 minutes, but, in extreme cases, itchy red welts may last anywhere from a few hours to days. In some cases, welts are accompanied with a painful burning sensation. [3] This calls for more urgent treatment as the condition can impact on the patient's quality of life.
If it is felt all over the body, then it is called generalized itch or generalized pruritus. [4] Generalized itch is infrequently a symptom of a serious underlying condition, such as cholestatic liver disease. If the sensation of itching persists for six weeks or longer, then it is called chronic itch or chronic pruritus.
Stress messes with your hormones, and a hormonal imbalance can cause vaginal itching. “Stress, good or bad, can alter your normal balance,” Harrison says. “Stress, good or bad, can alter ...
The cause of physical urticaria is unknown but it has been suggested to be an autoimmune disease, suggesting that antibodies, which are produced by the immune system to protect humans from foreign microbes, are binding to body tissue and damaging it. [8] In some cases physical urticaria can be a symptom of an underlying health issue such as: [9 ...
In short, melasma is a chronic skin condition that appears as darkened areas on the face due to an overproduction of melanin, says Gina Charles, MO, a family physician specializing in skincare. It ...