When a breast lump is found, it is important to seek medical attention as soon as possible so as not to miss the best time for treatment. The decision to operate is made by the appropriate surgeon, and the pathological diagnosis is particularly important at this time! The principles of treatment for benign and malignant diseases, and junctional diseases are very different. There are also different types of malignant disease, and the treatment can be different, even considering surgical approaches that preserve the breast. This is why it is important to have a pathological diagnosis after the removal of a breast lump! Some seemingly benign lumps may be malignant or have a tendency to become malignant in some areas. In some benign diseases, there is a high chance of recurrence or even a very obvious tendency to become malignant. Therefore, it cannot be said that benign ones are not problematic. The conventional pathological diagnosis of breast lumps is very accurate, with an accuracy rate close to 100%, and takes 3-5 days, but there is a more rapid diagnostic method – frozen section diagnosis, which can generally be made in about 30 minutes. The diagnostic accuracy is also higher, and experienced pathologists can achieve a diagnostic accuracy rate of more than 95%. This allows the patient to receive timely treatment.