Breast nodule aspect ratio greater than 1 is considered to be more likely to be malignant, and it is recommended that the nature of the nodule can be determined in conjunction with other examinations. Breast nodule aspect ratio refers to the ratio between the longitudinal diameter of the nodule perpendicular to the skin and the transverse diameter of the nodule parallel to the skin during the ultrasound examination of the breast, which can help to determine the benignness or malignant nature of the nodule, and it is generally considered to be a malignant nodule if the aspect ratio of breast nodule is greater than one. However, the result of breast nodule aspect ratio examination can only be used as an auxiliary examination result, if you want to diagnose the nature of breast nodule, you also need to do mammogram test, pathological tissue biopsy, which is conducive to the diagnosis of the nature of breast nodule. It is recommended that patients with breast nodules with aspect ratio greater than 1 may indicate malignant nodules, and patients should seek timely medical treatment for other examinations. For patients with malignant nodules, appropriate measures should be taken to treat them in time. Patients should ensure enough rest, maintain good mood and avoid staying up late for a long time.