Perineural cysts form around nerve roots, particularly in the lower back. They typically don’t cause symptoms, but some people may experience back or leg pain if the cyst grows and presses on nearby ...

What Is a Ganglion Cyst? A ganglion cyst is a small sac of fluid that forms over a joint or tendon (tissue that connects muscle to bone). Inside the cyst is a thick, sticky, clear, colorless, ...

Vaginal cysts are closed pockets of air, fluid, or pus on or under the vaginal lining. These can be caused by injury during childbirth, fluid buildup in your glands, or noncancerous tumors within the ...