The Hair Loss Encyclopedia
closed, sac-like structures filled with fluid or semi-solid material
Cysts are closed, sac-like structures that can form within tissues in any part of the body, including the skin, organs, and bones. They are typically filled with liquid, semi-solid, or gaseous material. While many cysts are benign and asymptomatic, some can cause discomfort or indicate underlying health issues, necessitating medical evaluation and potential treatment.