Xanthelasma is a very big word that describes yellowish patches that can show up on your eyelids. These patches are made up of fat and they're not harmful, but some people do find them embarrassing or don't like how they look.
Sometimes, xanthelasma can be a sign that you have high levels of cholesterol or other fats in your blood. But other times, there's no specific cause that we know of.
Some people can get rid of xanthelasma with things like creams or laser treatments, but other people may not be able to get rid of them completely.
Overall, xanthelasma is just something that can happen to some people, but it's usually not a big deal.