Types of itch

Question 1

What is neurogenic itch?

Give an example.

Answer 1

Itch caused by an effect on central nervous system
receptors, such as in renal or liver failure

Example: patient with metastatic lung cancer

Question 2

What is neuropathic itch?

Give an example

Answer 2

Damage to central or peripheral nerves causing itch.

Example: shingles

Question 3

What is pruritoceptive itch?

Give an example

Answer 3

Something (usually associated with dryness or inflammation) in the skin triggers the itch

Examples: eczema, insect bite

Question 4

What is psychogenic itch?

Give an example

Answer 4

Psychological cause with no detectable CNS damage.

Example: delusions of infestations