Lipoma is a benign tumor that occurs mostly in the subcutaneous area. It is surrounded by a thin connective tissue capsule and contains normal fat cells that are divided into lobulated clusters by connective tissue bundles. Some lipomas contain a large amount of connective tissue or blood vessels in addition to a large amount of fatty tissue, forming a complex lipoma. Lipomas are composed of mature adipose tissue and are more common in children than fibrous tumors and can occur in any part of the body where fat is present. Lipomas have a thin fibrous lining with many fibrous cords that form many intervals longitudinally and horizontally. They are most commonly found in the subcutaneous tissues of the neck, shoulders, back, buttocks, breasts and limbs, face, scalp, scrotum and labia, followed by the retroperitoneum and gastrointestinal wall; very rarely they may appear in areas where there was no adipose tissue. If the tumor has a high proportion of fibrous tissue, it is called fibrolipoma. Lipofibroblastoma is recommended to be treated by surgical excision. Smaller lipomas with slow development and no clinical symptoms usually do not need to be treated. There are various methods of laser surgery to treat lipomas, but for small lipomas, laser excision with microincision is used to remove the lobes. For larger lipomas, laser excision of the lipoma is very convenient. The lipoma is surrounded by a thin connective tissue capsule and contains normal adipocytes that are divided into lobulated groups by connective tissue bundles. Some lipomas contain more connective tissue or blood vessels in addition to a large amount of adipose tissue, forming a complex lipoma. Lipoma symptoms These tumors are usually found on the shoulders, back, buttocks and inner thighs, and head onset is also common. Lipomas located in subcutaneous tissues vary in size and are mostly flat and round or lobulated with clear demarcation; those with unclear demarcation should beware of the possibility of malignant lipoma. The tumor is soft and elastic (distinguish it from larger cysts), and some of them may have pseudo-volatility. The tumor does not adhere to the epidermis, the skin surface is completely normal, and the base is more extensive. When examining the tumor, if you press the base of the tumor with your hand, you can see the lobulated form. The skin may appear as “orange peel”. The tumor develops very slowly, and most of them have no serious adverse effects on the body, and malignant changes are rare. In addition, there is another type of multiple round or oval nodular lipomas, which are commonly found in the extremities, waist and abdomen under the skin. The size and number of these tumors are variable, and they are slightly harder than normal lipomas and painful when pressed. Examination of lipoma Routine physical examination. Treatment of lipoma Smaller lipomas with slow development and no clinical symptoms usually do not require treatment. There are various methods of laser surgery to treat lipomas, but for small lipomas laser excision with microincision is used to remove the lobes. Larger lipomas are removed by selecting incisions according to the site according to surgical requirements, and laser removal of lipomas is extremely convenient.