What should you know about a small goitre?

The thyroid sits at the front of the neck and makes hormones that influence how the body uses energy. A goitre may be smooth or lumpy and may develop while thyroid hormone levels are low, high or within the usual range. Some people notice only a visible fullness; others feel pressure, a tight collar sensation or discomfort when swallowing.

Possible thyroid conditions include Hypothyroidism, in which hormone production is low, and Hyperthyroidism, in which it is high. A neck swelling can also have other explanations, so its appearance alone cannot identify the cause.

Arrange a GP Consultation for a new or changing neck swelling. The clinician may feel the thyroid and neck, ask about weight change, heat or cold sensitivity, tremor, palpitations, tiredness and bowel changes, then arrange a Thyroid Function Test. An ultrasound may be considered when the gland feels uneven or a nodule needs a closer look.

Keep a note of when you first noticed the swelling and whether its size, voice or swallowing has changed. Do not start iodine or thyroid supplements without professional advice, because the wrong amount can affect thyroid function.

Seek urgent help if the swelling grows quickly, breathing becomes difficult, swallowing suddenly worsens, or you develop severe neck pain with fever. Arrange prompt review for a persistent hoarse voice, a firm or fixed lump, or swollen neck glands. These signs do not establish a diagnosis, but they should not be ignored.

Is my thyroid enlarged evenly or is there a distinct nodule? Which thyroid blood tests do I need? Could my medicines or supplements affect the result? Do I need imaging, specialist review or monitoring?