What Are the Causes of Widespread Itching?

General itching, also known as pruritis, is a common and distressing problem. It is associated with a wide range of causes and should be checked out with a physician. If the itching is associated with a rash or any skin lesions, referral to a dermatologist is indicated. Though widespread itching can occasionally be associated with an underlying medical condition, it is not usually serious in itself, though it can be distressing for the sufferer.

Allergy

• Antihistamines may be effective in treating itches caused by allergies.

  Allergy is one of the most common causes of itching. The itching may be localized or general. The doctor will carry out some tests which should identify the allergen. Treatment may involve the administration of an antihistamine.

Kidney Disease

• Kidney disease is frequently accompanied by itching. About half of people with kidney disease have a problem with itching, and this rises to 80 percent in patients who are receiving dialysis. The itching should be discussed with the kidney specialist who will have expertise in dealing with this problem.

Anxiety

• Anxiety often causes widespread itching. Sometimes it may be that the anxious person initially had an itch caused by something else, such as an allergy. The anxiety will cause the person to continue scratching after the allergy has subsided, and this in itself can set up a chain reaction, which makes the problem continue.

Blood Disorder

• Sometimes widespread itching is caused by blood disorder. Iron-deficiency anemia is one condition that may be at the root of the problem. This is relatively easy to diagnose and treat.

Immune Disrder

• Widespread itching might be an indication of an underlying endocrine disorder, such as a malfunctioning thyroid gland. If this disorder is diagnosed and treated, the itching should stop.