Fibroadenoma of breast
The tumor itself will not cause pain, but will only cause pain by compressing the nerves with the growth of the tumor.
Lipoma of breast
Due to the abnormal accumulation of adipose tissue, it will not cause pain in itself.
Breast cyst
The cause of the formation is related to the change of estrogen level in the body, and there is no pain at the beginning of the disease.
Malignant tumor of breast
The tumor has no obvious symptoms in the early stage and can touch hard tissue.
Normal development of breast
Because hormones in the body stimulate breast development during adolescence, there may be a lump in the breast.
Scar tissue formed after breast trauma
There is no pain, but you can feel the lump.
Milk deposition in early lactation
Due to milk ejection's endless obstruction of mammary duct, the lump in breast tissue can be touched on the skin surface.