Does a fine needle aspiration of thyroid nodule hurt?

A fine needle aspiration (FNA) of the thyroid nodule is generally considered to be a minimally painful procedure. Here's what you can expect:

During the procedure:

Local anesthesia: Before the procedure, the doctor will cleanse the area and apply a local anesthetic to numb the skin and underlying tissue. This helps to minimize discomfort during the needle insertion.

Needle insertion: The doctor will insert a thin, hollow needle into the thyroid nodule. This may cause a momentary prick or pressure, but the numbing effect of the local anesthetic should help reduce any significant pain.

Aspiration: The doctor will use the needle to withdraw a small amount of cells from the nodule. This process usually takes only a few seconds and most people tolerate it well. Some individuals may experience a mild discomfort or pressure sensation during aspiration.

After the procedure:

Some people may feel slight soreness or tenderness at the injection site for a short time after the FNA. This discomfort can usually be managed with over-the-counter pain relievers.

Bruising or swelling may occasionally occur around the injection site, but these usually resolve within a few days.

Overall, while some discomfort can be expected, most people find that the pain associated with a fine needle aspiration of the thyroid nodule is minimal and manageable.