31 F asks: Is a pleural effusion
always dangerous? Does it need to always be drained.
What are the symptoms? ANS: yes, no & SX can be none to pain when take deep breath, SOB or to coughing up blood but depends on cause. So ask your Drs what they think is cause. Once this is known then advice may range from no worries! to do not begin any long books! Dr. humor here! But ask them they know u best.