Makaila Chenier, 17, found a lump in her neck. As it grew it became more difficult for her to breathe when she'd lie down. Doctors discovered it was lymphoma.

The location, hardness, and other characteristics of a pea-sized lump may determine whether the cause is temporary or if you should see the doctor soon.

New, worsening, or constant neck pain can be a cancer symptom, especially if a person has other symptoms, such as a lump or unexplained weight loss.

Lifestyle Cancer Research UK 'I found a lump on my neck I thought was flu but it was far worse' Ezzy Pearson's cold symptoms of a runny nose, exhaustion and a persistent cough turned out to be a ...