What causes a lump behind the ear, and when should it be medically assessed in Europe?

Lump behind ear explained: swollen lymph nodes, cysts, infections, mastoiditis, and red flag symptoms.

In this episode, we outline the common causes of a lump behind the ear and how doctors distinguish minor conditions from those requiring urgent evaluation.

You’ll learn:

• How swollen lymph nodes can occur after ear, throat, or scalp infections

• The difference between sebaceous cysts, lipomas, and inflamed follicles

• Signs of mastoiditis (infection of the bone behind the ear)

• When pain, redness, or fever suggests infection

• Red flag symptoms such as worsening swelling, severe headache, hearing changes, or neurological signs

• When imaging or in-person ENT assessment may be required

• Situations where treatment requests may be declined pending examination

We explain how doctors assess onset, recent infection, growth rate, tenderness, discharge, and systemic symptoms during an online consultation in the EU. Rapidly worsening swelling or systemic illness requires urgent medical review.

This episode reflects the clinical standards used by Mobi Doctor, where ENT-related consultations are reviewed by a registered physician in line with EU medical guidance.

Read the full guide and transcript here:

https://www.mobidoctor.eu/blog/lump-behind-ear