NGS (Next Generation Sequencing Technology), also known as high-throughput sequencing technology. It is often used for screening of genetic diseases, prenatal testing or diagnosis, clinical diagnosis of tumors, pharmacogenomic testing, chemotherapy and treatment of cancer, screening or diagnosis of single gene diseases, etc. It can detect hundreds of thousands to millions of DNA molecules at one time through parallel principles, such as blood and urine biopsy or sequencing of mutated genomes of solid tumors, DNA blood test for pregnant women can be performed for genetic disease The DNA blood test can be used to screen for genetic diseases, avoiding the limitations and dangers of previous invasive tests through amniocentesis. The NGS test is currently sent to the clinic for the purpose of evaluating the availability of appropriate immunotherapeutic agents or targeted drugs, and for testing patients with a family history of genetic tumors and their parents or close relatives to determine the type of genetic disease, to detect the presence of disease in the patient’s relatives, to assess the risk of disease, and to assess the risk to the reproductive system. Assessment of reproductive risk. Before the test, the patient must select a genetic test product according to his or her personal situation and fill out a detailed clinical information and application form.