Just under a third of survey respondents knew that fatigue was a common symptom, while more than one in 10 correctly identified bruising and weight loss as signs.
Recall of other common symptoms of blood cancer was even lower, with only one in five percent of respondents identifying pain, two percent citing repeated infections, and just one percent identifying lumps and night sweats.
One in 19 people will be diagnosed with blood cancer, which include leukaemia, lymphoma, and myeloma, at some point in their lives, and they kill more people every year in the UK than either breast or prostate cancer.
According to the NHS, chronic lymphocytic leukaemia, the main form of blood cancer, does not usually cause any symptoms early on and may only be picked up during a blood test carried out for another reason.