Ask a doctor - What are the four categories of itching?

Q. What are the four categories of itching?

Doctor Answer is medically reviewed by SecondMedic medical review team.

Answered by Secondmedic Expert

Let's delve into the fascinating world of itching!

1. Histamine Itch: This type of itch occurs when your body releases histamine, a compound involved in allergic reactions. When you come into contact with something you're allergic to, like pollen or certain foods, your body releases histamine, leading to itchiness. This type of itch is often accompanied by other allergy symptoms like sneezing, runny nose, or watery eyes.

2. Neuropathic Itch: Neuropathic itch is caused by damage or dysfunction in the nervous system. Conditions like diabetes, shingles, or multiple sclerosis can cause nerve damage, leading to chronic itching. Neuropathic itch can be quite intense and may feel like burning, tingling, or crawling sensations on the skin.

3. Psychogenic Itch: Sometimes, itching can be triggered or worsened by psychological factors such as stress, anxiety, or depression. You might find yourself scratching more when you're feeling anxious or overwhelmed. Psychogenic itch can be challenging to treat because it's not solely related to physical causes.

4. Mechanical Itch: This type of itch occurs in response to physical stimuli such as friction or pressure on the skin. Wearing tight clothing, being in a dry environment, or even insect bites can trigger mechanical itch. Scratching might provide temporary relief, but it can also damage the skin and make the itching worse in the long run.

It's essential to identify the underlying cause of your itching to effectively manage it. If you're experiencing persistent or severe itching, it's a good idea to consult a healthcare professional for proper diagnosis and treatment.