A ganglion cyst is a firm, fluid-filled lump that can form in the wrist or hand. It grows from normal tissue in the wrist and fingers, and ranges in size from a pea to a peach pit. Ganglion cysts are not cancerous and not spread to other body areas. Ganglion cysts can appear suddenly or gradually over time. In many cases, they do not require medical care, and may go away on their own.

Causes & Risk Factors of Ganglion Cysts

The cause of ganglion cysts is unknown. Anyone can get a ganglion cyst, and many people do at some point in their lives. However, there are several factors that may increase your likelihood of ganglion cysts.

These include:

Sex – Women are more likely than men to develop ganglion cysts
Age – Patients between the ages of 20 and 40
Osteoarthritis – Patients with osteoarthritis in the top-most joints in their fingers are at greater risk of developing cysts near those affected areas
Injury in joint or tendon – Joints or tendons that experienced prior injuries are more susceptible to developing ganglion cysts

Read here- home remedies for ganglion cyst

a gang of lions