Granulomatous capillary hemangioma, also known as capillary dilated granuloma, capillary hemangioma with infection and lobular capillary hemangioma, is a special type of hemangioma. It is a kind of vascular proliferation lesion mainly occurring in mucous membrane or skin, characterized by capillary proliferation and formation of lobular structure. It is mostly a single polyp-like or nodular lesion with tissues, growing rapidly, brittle, often ulcerated and bleeding, resulting in tissues connected with skin or mucous membrane at the bottom and forming collar-like changes with normal tissues. The etiology of granulomatous capillary hemangioma is still unclear, and there are three main theories: trauma theory: about 1/3 of cases have confirmed that the mass is related to trauma. Infection theory: Infection is mainly caused by Staphylococcus aureus, but some believe it is caused by Streptococcus. Hormone expression theory: Patients with granuloma-type hemangioma have increased estrogen expression, and estrogen receptors are expressed in some capillary hemangioma tissues. Some scholars have classified the microscopic findings into four types: capillary, spongy vascular, vasodilated, and mixed types. The cause of granulomatous hemangioma is unknown, but it is thought to be related to trauma, infection and hormone level, among which trauma is more closely related to neovascularization after skin penetrating injury. They are more likely to occur on the head, face, hands and feet. The diagnosis is not difficult based on the diagnostic features. Its clinical manifestations are mainly: 1. exophytic growth, purple-red, brittle, easy to bleed when touched. The surface is prone to ulceration, and each time it breaks down, the tumor will be larger than before, resulting in a collar-like change with the skin or mucous membrane at the bottom or with normal tissue. 3. No obvious itching or pain. Current treatments for granuloma hemangioma include local sclerotherapy, laser treatment, surgical excision, radioisotope dressing, cryotherapy, etc. Surgical procedures are not fully applicable to lesions on the face and fingers (toes). The excision of facial lesions is likely to leave scar and affect the beauty, and the incision is sometimes difficult to close after excision of lesions in the finger (toe) area, and there is a certain recurrence rate after surgery. Laser treatment is more effective for smaller granulomas, but there is a possibility of bleeding during treatment. Radioisotope dressing and cryotherapy are inaccurate, and are more likely to leave scarring or hyperpigmentation. Local sclerotherapy injection treatment has been gradually adopted because of its small invasion, stable efficacy, less likely to leave scars and reasonable cost, which can be implemented in outpatient clinics. The choice of sclerosing agents includes (polyglaucine, polydocanol, pinyamycin, cod liver oil sodium, tretinoin, Depo-Provera, urea, Chrysosone-A acetate, saraparin, 32P-chromium phosphate colloid, elimination of hemorrhoids, etc.), among which polyglaucine and polydocanol are the more widely used sclerosing agents at present.