A Study Comparing the Differences Between Young and Non-young Breast Cancer

A Study Comparing the Differences Between Young and Non-young Breast Cancer

To collect data on diagnosis, treatment, survival prognosis, and intrinsic molecular detection of breast cancer in China from January 2000 to December 2024.Compare the difference between young and non-young breast cancer.

Inclusion Criteria:

• During the period from January 2000 to December 2024, the first breast cancer diagnosed and treated in several hospitals in China was in the age range of 18-75 years.

Exclusion Criteria:

• Breast cancer patients under 18 years of age or over 75 years of age; Combined with other malignant tumors; Patients with chronic infectious diseases or chronic infectious diseases; Patients with severe comorbidities, with serious dysfunction of vital organs (heart, liver, kidney); Known history of human immunodeficiency virus; The investigator concluded that patients should not be included in other conditions of this trial.