The spot like birthmark on the body is considered to be caused by pigmented nevus, cafe au lait spot, lichen planus and so on, which can be treated by medication, surgery and physical therapy. 1. Nevus pigmentosus: caused by abnormal development of subcutaneous melanocytes, which will lead to secretion of large amount of pigment under the skin, and accumulation of pigment in the local area, which will lead to the growth of spots like birthmarks on the body. It needs to be treated by surgical excision of the pigmented nevus. 2. Coffee spot: related to genetic factors, it is due to abnormal pigmentation changes, resulting in a large amount of melanin precipitation in the local area, which will lead to the growth of spots like birthmarks on the body. It can be treated by physical therapy, such as laser. 3. lichen planus: it is caused by malassezia invasion of the cuticle of the skin, after the cuticle is invaded, spot-like spots, round or round-like, after ultraviolet irradiation, it will form the hypopigmentation, which leads to the patient’s body to grow like a birthmark like spots. It can be treated with antifungal drugs, such as miconazole cream and ketoconazole ointment. There may be other reasons for the growth of spots like birthmarks, and it is recommended to consult a doctor for standardized treatment under the guidance of the doctor.