Eczema-like carcinoma is divided into two categories: eczema-like carcinoma of the breast and eczema-like carcinoma of the external breast. Eczema-like carcinoma of the breast mainly manifests as eczema-like rash on the skin around the nipple and areola with dry grayish yellow or light green scabs on the surface, which reveals bright red vesicular surface or granulation tissue after removing the scabs, with unequal amount of exudate or dryness on the surface of the lesions, which can have grayish white scales on the surface. Extramammary eczema-like carcinoma usually occurs in areas with sweat glands, such as scrotum, penis, labia majora and minora, etc. The main manifestation is also a rash similar to eczema-like carcinoma of the breast. Eczema-like carcinoma of the breast and eczema-like carcinoma of the external breast are not uncommon in clinical practice. If similar symptoms appear, like eczema, and cannot be relieved by repeated treatment, eczema-like carcinoma should be suspected and pathology should be done as soon as possible to confirm the diagnosis.