👉 Cystoid is a medical term used to describe a type of skin condition in which there are many, sometimes too many, blue-gray "cysts" or swellings. These cysts can be found on various parts of the body, including the face, hands, and feet. Cystoids can also occur in other areas such as the eyes, ears, and mouth. They can be caused by a variety of factors, including genetics, infections, and environmental factors. Cysts are usually