Positive 7 microRNA indicates a higher likelihood of liver cancer, but further blood tests, ultrasound, biopsy and other tests are needed. If a positive 7-micronucleic acid (RNA) is present during the examination, liver cancer is considered to be more likely to occur. 7-micronucleic acid is a sensitive indicator of liver cancer, and is mainly used for pre-screening of liver cancer, but a diagnosis of liver cancer cannot be made by a positive 7-micronucleic acid test. However, it is not possible to diagnose liver cancer with 7 positive microRNAs. After 7 positive microRNAs, tests such as alpha-fetoprotein, abdominal ultrasound or CT are needed, and liver biopsy is also needed to confirm the presence of liver cancer. Generally speaking, finding cancer cells in tissue biopsy is the gold standard for diagnosis, and follow-up tests according to the doctor’s instruction can be conducted.