With the development of personalized medicine and clinical cancer genomic research, the demand for genetic testing services is becoming more and more extensive. Genomics technologies and targeted therapies can bring great benefits to cancer patients. Using genomics technologies to treat diseases in patients in the field of cancer research It is very attractive, so companies providing genetic testing services on the Internet are becoming more and more popular, but experts have found that at least one of the genetic testing projects for personalized cancer diagnosis or treatment provided by most websites has no clinical application value. It can be inferred from this:. ['Some services of network genetic testing companies have no clinical significance.', 'Not all genetic testing projects are scientific and accurate.', 'Not all genetic testing programs are cancer-related.', 'Promotion of personalized medicine promotes genomic research.']