Tender lump on the back of the neck: what to know

Lymph nodes along the neck can become tender when the scalp, throat, ear, or nearby skin is irritated or infected. A blocked follicle or inflamed cyst can also form a sore bump. Head and neck cancer, lymphoma, thyroid cancer, or cancer of unknown primary may involve neck nodes, but a neck lump does not by itself establish any of these diagnoses.

Record its location, size, tenderness, and how long it has been present. Do not repeatedly press or massage it. Arrange an examination if it remains, grows, feels hard or fixed, or has no clear explanation. Depending on the findings, assessment may include the mouth, throat, ears, scalp, thyroid, and other lymph-node areas; tests are chosen from that examination.

Seek prompt care for breathing or swallowing difficulty, a rapidly enlarging swelling, high fever, spreading redness, severe pain, or marked weakness. Arrange timely review for night sweats, unexplained weight loss, persistent hoarseness, blood in saliva, or a lump that keeps returning.

Ask which nearby area may be causing the node to react, whether the thyroid and throat need checking, what follow-up interval is appropriate, and which symptoms should prompt earlier contact.