A small white spot on the lower eyelid is a common skin phenomenon, generally considered to be due to fatty grains, wheals, etc. It may also be due to blockage of lid gland secretions, sweat duct tumors, etc. It needs to be judged according to the symptoms, signs, local changes, etc. The causes are different and the treatment methods will be different. 1. Fatty grains: Due to the failure to clean up the eye after keratin metabolism and other reasons The metabolites accumulate around the mouth of the eye follicle, and the oil on the surface of the skin around the eye is not excreted, thus forming tiny fatty grains, which can appear as a small white spot on the lower eyelid. Usually, the fat particles will slowly fall off with the metabolism of keratin, you can also use disposable needles to pick out, it is not recommended to clean up at home, you can go to the hospital to find a professional doctor to clean up, to prevent improper operation and the occurrence of infection; 2, wheat grain swelling: is a kind of eye follicles and glands of acute purulent inflammation, mostly due to staphylococcus caused, the general early eye will appear a small white spot. The local skin will have redness, swelling, hard nodules, and painful pressure, followed by the formation of yellow pus spots. If the symptoms persist or worsen, the patient can be treated with levofloxacin eye drops or eye ointment as prescribed by the physician, or the patient can be surgically incised and drained to promote healing. 3. Obstruction of secretions from the lid gland: When the secretions from the lid gland are obstructed, they can cause a buildup of secretions and produce conjunctival stones, causing small white spots to form on the lower eyelid. The situation is usually accompanied by uncomfortable symptoms such as red eyes and dry eyes. You can apply a hot compress to the eyelid to soften the secretions and massage the lid gland to promote discharge. You can also use a non-irritating boric acid solution to cleanse the lower eyelid. If the discomfort worsens, you need to use antibiotic drops and artificial tears for treatment as prescribed by your doctor. 4. Sweat duct tumor: A small white spot on the lower eyelid also requires consideration of the possibility of sweat duct tumor. The reason for this is usually related to abnormal development, endocrine disorders, etc. It can be removed without treatment, but if you have high requirements for appearance, you can use laser and freezing treatment. A small white spot, such as the use of some oral medication for treatment, such as the commonly used isotretinoin, zinc glycyrrhiza granules, etc.. If the treatment is not effective, you can also use laser and red and blue light to eliminate local skin inflammation and promote the recovery of acne and pimples.