Fine Needle Aspiration

What is a Fine Needle Aspiration?

A fine needle aspiration or small biopsy is a relatively simple procedure performed under ultrasound guidance. It is a method of removing a small amount of fluid or tissue by passing a needle through the skin. A local anaesthetic is usually given; this is a relatively non-invasive, less painful and quicker method when compared to other methods of tissue sampling such as surgical biopsy.

Fine Needle Aspiration

Fine needle aspiration or small biopsies are often performed when a lump is found, for example in the thyroid gland in the neck, or if an abnormality is detected close to the skin surface or on an imaging test such as X-ray or ultrasound.

The fluid or tissue taken during the procedure is sent to a pathology laboratory for analysis.

Common, mild effects:

  • Local pain or discomfort
  • Bruising or minor bleeding at the site

  • The skin is cleaned; local anaesthetic may or may not be used.
  • A thin needle is inserted into the lump or lesion.
  • Cells are aspirated using gentle suction.
  • Multiple passes may be needed to improve diagnostic yield.
  • Pressure is applied afterward to reduce bleeding.

Typical duration: 10–20 minutes.

  • Mild soreness or tenderness can last for 24–48 hours.
  • Normal daily activities can usually be resumed the same day.
  • You may be advised to avoid strenuous activity for a short period.
  • Results are interpreted alongside clinical findings and, if needed, other tests.

How to use our services

You can be seen through the NHS or as a private patient. You’ll need a referral first, and we’ll check it to make sure this service is right for you.


Feedback

We want to hear about your experience with us. Whether it’s a compliment, suggestion, or concern, your voice helps us improve and provide better care.