Cysts are sacs or pockets filled with fluid or other substances that can form in different parts of the body. They can be found on the skin, in organs such as the liver, kidneys, and ovaries, or within bones and soft tissues. Some cysts are benign and do not cause any symptoms or harm, while others may be cancerous or cause pain, discomfort, or other health problems. Cysts can develop due to various factors such as infection, injury, hormonal changes, or genetic conditions. Treatment options for cysts depend on their location, size, and type, and may include medication, drainage, or surgical removal.