An irregular breast lump is not necessarily malignant, and you cannot judge the benign or malignant nature of a breast lump by its shape alone. It is advisable to seek medical attention and find out the exact nature of the breast lump. An irregular breast lump may be benign or malignant, benign lumps such as cystic hyperplasia of the breast, fibroadenoma of the breast and so on. Malignant lumps may be breast cancer, breast sarcoma and other conditions. The gold standard for determining the nature of a breast lump is pathology, which is usually determined by puncture biopsy or surgical excision biopsy. If the patient has irregular breast lumps, it is recommended that the patient consult a doctor in time, under the guidance of the doctor for examination and standardized treatment after a clear diagnosis, so as to avoid delaying the condition. At the same time, it is recommended that the patient adjust the diet structure, do not eat too greasy spicy stimulating food.