What is a Lymph Node Ultrasound Scan (1 Area)?

A lymph node ultrasound scan is a non-invasive imaging test that uses high-frequency sound waves to produce real-time images of lymph nodes beneath the skin. It does not use radiation and is considered very safe.

A one-area lymph node ultrasound focuses on a specific region, such as the neck (cervical), armpit (axillary), groin (inguinal), supraclavicular area or behind the ear. The scan assesses the size, shape, internal structure and blood flow of lymph nodes.

This test is commonly used as a first-line investigation when lymph nodes are enlarged, tender, persistent or unexplained.

Why do I need a Lymph Node Ultrasound Scan?

A lymph node ultrasound scan is recommended when swollen glands persist, change in size or are associated with symptoms such as pain, infection or unexplained illness. It helps identify the likely cause of lymph node enlargement and whether further tests are needed.

You may need a lymph node ultrasound scan if you have:

• Swollen lymph nodes lasting more than a few weeks
• Painful or tender glands
• Enlarged lymph nodes following infection
• Firm, hard or fixed lymph nodes
• Rapidly growing lymph nodes
• Lymph node swelling with fever or fatigue
• Unexplained weight loss or night sweats
• Localised swelling in the neck, armpit or groin
• Monitoring of known lymph node changes
• Reassurance for persistent swollen glands

Early assessment helps rule out serious causes and provides peace of mind.

Benefits of a Lymph Node Ultrasound Scan

• Fast, targeted assessment
  Focuses precisely on the affected lymph node area.
• No radiation exposure
  Completely safe for repeat imaging.
• Real-time evaluation
  Allows immediate assessment of lymph node structure.
• Differentiates reactive vs suspicious nodes
  Helps identify infection-related changes versus concerning features.
• Guides further management
  Determines whether biopsy or follow-up is needed.
• Non-invasive and painless
  No needles or injections required.
• Cost-effective investigation
  Often avoids unnecessary advanced imaging.
• Same-day explanation
  Findings are usually discussed during or shortly after the scan.

Step-by-Step – How We Offer Lymph Node Ultrasound Scans

Clinic-Based Lymph Node Ultrasound Scan (UK-wide)

• Choose your nearest UK clinic
• Attend your appointment
• The scan typically takes 10–20 minutes
• Performed by an experienced clinician
• Findings are explained during or shortly after the scan

Important:
Lymph node ultrasound scans are performed in clinic only. Home visits are not available. Services are available across the UK.

Your Lymph Node Ultrasound Results Explained

Lymph node ultrasound results are interpreted based on size, shape, internal architecture and blood flow, not numerical values.

Normal / Reactive Lymph Nodes

What this means:

• Small or mildly enlarged nodes
• Preserved internal structure
• Features consistent with infection or inflammation

What it suggests:
Usually benign and often related to recent or current infection.

Mild to Moderate Abnormal Findings

What this may show:

• Enlarged reactive lymph nodes
• Changes due to chronic inflammation
• Mild structural alteration

What it suggests:
May require monitoring or follow-up imaging depending on symptoms.

Significant or Concerning Findings

What this may show:

• Markedly enlarged nodes
• Loss of normal internal structure
• Increased or abnormal blood flow

What it suggests:
Further tests such as biopsy, blood tests or specialist referral may be recommended.