Digital Mucous Cyst

What is a digital mucous cyst?

Digital mucous cysts are fluid-filled sacs that move minimally under the skin. They are a form of ganglion cysts which are most often found on finger joints closest to the fingernail, and less commonly on the toes.

What are the risk factors?

• History of osteoarthritis
• Repetitive movements with the affected joints

How can this be treated?

Digital mucous cysts do not subside on their own and many times may recur after treatment. Ask your dermatologist for the treatment plan that’s most efficient for your case.

• Intralesional photodynamic therapy (PDT): The cyst is drained, and a light-sensitive fluid is injected into the affected area. A laser light is directed at the area to completely terminate the foundation of the cyst. This treatment method is by far the most effective with a 100% success rate.
• Injection with sclerosing agent: Injecting steroid into the affected area facilitates reduction of the fluid beneath the skin.
• Infrared coagulation (IRC): Inducing minimal pain on the site, this treatment utilizes infrared light (heat) to burn off the base of the cyst to eliminate any recurrence of fluid.
• Cryotherapy: A possibly painful treatment course that involves using liquid nitrogen is used to freeze the site after draining the cyst to prevent fluid from reemerging.
• Repeated needling: The cyst is drained through approximately 2 to 5 punctures to the affected area using a sterile knife blade or needle. This procedure might lead to recurring cases due to remnant fluid or new buildup.
• Carbon dioxide laser: The use of a laser to ablate (burn off) the base of the cyst after it has been drained. This procedure further prevents the recurrence of the fluid that has been drained.

If you are concerned about a cyst on your fingers or toes, our dermatologists can help recommend the best treatment for you.