Home Instructions Following Thyroid Fine Needle Aspiration

You had a fine need aspiration (FNA) biopsy of your thyroid gland. The following information may be helpful as you recover today.


  • You may return to most activities and work today.
  • Avoid any vigorous physical activity for 24 hours.

Symptom Control

  • If you have pain and tenderness at the site, you may take your usual or recommended pain medication except for aspirin the day of your biopsy.
  • You may feel more comfortable lying with your head partially raised.
  • Avoid strain on your neck by placing both hands behind your next to support your head.
  • You may develop a sore throat.

Biopsy Site Care

  • If you have a small amount of bleeding at the site, lie down and apply gentle direct pressure to the bleeding for 10 minutes, then apply a new bandage.
  • Brusing is normal and should fade in a week to 10 days.
  • Keep bandage on and area dry for 24 hours.

When to Call Your Doctor or Seek Care

Call if you experience any of the following:

  • Fever over 100 degrees.
  • Increased redness or swelling at the site.
  • Persistent drainage or pain around the site.

Seek care at the nearest emergency facility if you experience any of the following:

  • Neck swelling that creates difficulty swallowing or breathing
  • Persistent bleeding – does not stop after 10 minutes of applied pressure.


  • Lab results take approximately 4-5 working days. If you have not received your results within 4-5 days, please call your health care provider or ordering clinic.
  • Results will also be released in MyChart for your review.

If You Have any Other Questions, Please Call:

Imaging Services at 320-255-5619, Monday-Friday from 7 a.m. to 5:30 p.m.

If you have any questions after these times, please call your provider.

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