er, pr-negative, her2-positive breast cancer has the possibility of hereditary, this situation must be timely medical treatment for reasonable standardized examination and diagnosis and treatment. Cancer occurs largely due to genetic mutations, and such mutations produce cancer not all suddenly, but partly slowly. Once a gene mutation occurs, the probability of passing it on to the next generation is extremely high. Therefore, either type of breast cancer can be hereditary. People with a family history of breast cancer need to be screened for relevant cancer genes and undergo regular breast examinations for early detection of breast cancer. Once it occurs, they should seek timely medical treatment for reasonable and standardized preventive treatment.