Itchy skin can be a symptom of an underlying illness.
These include liver disease, kidney failure, iron deficiency anemia, thyroid problems and certain cancers, including multiple myeloma and lymphoma.
What diseases cause itching all over?
The following diseases may cause generalized itching, but the skin usually appears normal:
- bile duct obstruction.
- thyroid disease.
- kidney failure.
Why am I itching all over my body with no rash?
Dry skin is a particularly common cause of itching without a rash, especially as we get older. Sometimes people have dry skin due to an underlying medical condition, such as an underactive thyroid (hypothyroidism) or Sjogren’s syndrome (a disease that typically causes arthritis, dry eyes, and dry mouth).
What cancer can cause itchy skin?
Itching can be caused by cancer treatment or the cancer itself. Cancers that involve the skin or have spread to the skin, such as malignant melanoma, leukemia and lymphoma, commonly cause itching. Itching may also be caused by the body’s inability to clear certain toxins due to kidney or liver problems.