A urachal cyst is a sac of tissue and fluid between the bladder and the belly button, which can sometimes cause discomfort or symptoms if it drains. An infected urachal cyst can pierce the bladder or ...

I've developed a weird painless growth on my neck. Do I need to get it removed? Dr Philippa Kaye answers: One of the most likely causes of a growth on the neck would be a cyst. These are fluid–filled ...