Prurigo nodularis (very itchy hard bumps)

Overview

The bumps form where people scratch most, like arms and legs.

Treating the itch is key.

Symptoms

Common signs:

• Very itchy hard bumps
• Itching

Less common

• Dark spots

Look up a symptom: Itching

When to get medical care

Causes

Itch-scratch cycle.

Does it spread or run in families?

• It isn't contagious. You can't catch it from someone else.

Who is more likely to get it

• Eczema

Possible complications

• Skin infection: From scratching
• Depression: Itch can harm sleep and mood

Diagnosis

A clinician asks about your symptoms and may order tests.

The exam

A physical exam.

Tests

Tests, if needed:

• Exam:

Treatment

Treatment depends on the cause and how severe it is.

Self-care

• Cover bumps
• Keep nails short
• Moisturize often
• Use cool compresses

Prevention

To lower your risk or prevent problems:

• Treat itching early

Which doctor treats this

• Start with your primary care provider (family doctor or internist).
• They may send you to a dermatologist (skin doctor).

Children, pregnancy, and older adults

• People with eczema or kidney disease: Higher risk.

Pregnancy and breastfeeding

• If you're pregnant or planning to be, tell your prenatal provider about this condition.
• Don't start or stop any medicine on your own. Some are safe in pregnancy and some need to be changed.
• Ask before taking any pain reliever. The FDA advises avoiding ibuprofen and naproxen after 20 weeks unless your doctor says to.
• Breastfeeding: Most medicines are fine, but ask. The NIH LactMed database lists what's known about each one.

Outlook

New treatments help many.

Getting ready for your visit

Bring a list of your symptoms and medicines.

What to bring

• A list of your medicines and supplements
• Notes on when symptoms started and what makes them better or worse

Questions to ask

• What's causing this?
• What treatment do you recommend?
• Would dupilumab help?

Research studies

Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.

Search ClinicalTrials.gov for studies on Prurigo nodularis (very itchy hard bumps)