How many mm is considered large for a breast nodule?

Whether the size of a breast nodule is considered large needs to be determined on a case-by-case basis. Generally speaking, a nodule larger than 2 cm in diameter may require further evaluation. This does not mean that all nodules larger than 2 cm will cause health problems, but it does suggest that examination is more important.

Breast nodules are localized masses in breast tissue, usually caused by hyperplasia, cysts, fibroids, or rarer malignant tumors. Depending on the nature and size of the nodules, they can be divided into benign and malignant. Many nodules are actually benign, such as fibroadenomas or breast cysts, which are discovered during physical examinations or imaging tests such as B-ultrasound. Measuring the size of breast nodules is one of the important factors to help doctors determine their nature, but it also requires a comprehensive evaluation of morphology, boundaries, blood flow, and elasticity characteristics.

Generally speaking, breast nodules smaller than 1 cm with clear borders, regular shapes, or containing fluid are usually benign and low risk, and may not require special treatment. When a nodule is larger than 2 cm or grows rapidly in a short period of time, especially when accompanied by pain, discharge, or breast skin abnormalities, it should be taken seriously. If imaging examinations show that the nodules have irregular shapes or blurred borders, this situation requires extra vigilance, as the risks involved may be higher.

To manage breast health, women need to perform regular breast self-examinations and arrange imaging examinations according to doctor's orders based on age and risk. Breast health self-examination can feel whether there are abnormal lumps in the breast by touch, and record new changes found. If a nodule has been found, regardless of the diameter, it is important to keep records and follow up regularly. If you feel a breast lump is painful, asymmetrical, or continues to grow, be sure to seek further evaluation from a specialist as soon as possible.