My son has a lump on his neck: what should I know?

Neck lumps in children commonly reflect enlarged lymph nodes responding to a cold, sore throat, ear infection, or skin irritation. Other possibilities include a cyst, a salivary-gland problem, or a thyroid nodule. Cancer is less common, but Head and Neck Cancer, Lymphoma, Thyroid Cancer, or Cancer of Unknown Primary may be considered when examination findings warrant it. The lump’s position, firmness, mobility, tenderness, growth, and duration all matter.

A clinician may examine the mouth, throat, ears, skin, thyroid, and nearby lymph-node areas. Ultrasound or other tests may be suggested when the cause is unclear.

Note when the lump appeared, whether it is changing, and whether your son has pain, fever, sore throat, cough, night sweating, reduced appetite, or weight change. Do not repeatedly press or massage it. Arrange a paediatric or family-doctor visit if it remains after an infection settles, grows, feels hard or fixed, or occurs without an obvious illness. If the lump is linked to the thyroid, the care team will explain whether Thyroid Removal Surgery is relevant; this is not decided from a lump alone.

Seek emergency help if swelling causes trouble breathing, noisy breathing, choking, drooling, inability to swallow, or a rapidly worsening appearance. Seek prompt medical review for a lump that enlarges quickly, is above or below the collarbone, is hard and not mobile, or comes with persistent fever, marked tiredness, or unexplained weight change. These features require examination and do not by themselves establish a cancer diagnosis.

Where is the lump located, and does it feel like a lymph node, cyst, thyroid finding, or something else? How long should we watch it? Would an ultrasound help? Which symptoms should bring us back sooner?