Fatty grains are not a standardized term. Fatty grains, also known clinically as milia, are retention cysts that originate in the epidermis or epithelium of the appendages. They occur around the eyelids. Fat grains may be due to the body’s endocrine function is not normal, metabolic disorders caused by excessive oil secretion, can not be discharged in a timely manner, can be divided into primary, secondary. Secondary causes include radiation therapy, topical hormone ointment, certain inflammatory skin diseases, and inadequate cleansing. Primary:For primary cellulite is usually associated with congenital genetics. Beginning in the neonatal period, formed by the undeveloped sebaceous glands or the epithelium of the lower end of the funnel part of the cuirass, the damage can subside naturally. Secondary: 1. Radiation therapy:Radiation therapy causes damage to the skin and may produce fat grains. 2. Topical hormone ointment:Long-term use of hormone ointment or non-hormonal anti-inflammatory ointment, such as hydrocortisone cream, dexamethasone ointment, etc., is prone to secondary fat grains. 3. Certain inflammatory skin diseases: common in herpetic dermatitis healing, the skin will appear fat grain. Some patients may also be due to the lack of cleaning, resulting in poor skin permeability, metabolism is blocked and the appearance of cornrows. Fatty grains are usually not harmful to the body and do not require special treatment. If you need treatment, you can go to the dermatology department of a regular hospital and receive reasonable treatment under the guidance of a doctor.