![](https://www.grimethorpesurgery.nhs.uk/files/2022/11/FhSA-ZAWQAA4rs3.jpg)
Tummy trouble such as discomfort or diarrhoea for three weeks or more, or blood in your pee β even just once, could be a sign of cancer. Itβs probably nothing serious, but finding cancer early makes it more treatable. Contact your GP practice. http://nhs.uk/CancerSymptoms