I have a soft fluid type lump on my knee cap.  It is painless, goes up and down and I have had it for about a year.  I can push it around and as I say, some days its bigger than others.  If it is down, I can feel hard lumps underneath on my knee cap which are not on the other leg.  Its only on my left leg.  I have had a look at the symptoms of bursitis, but I am sure its not that as my father had that and it was completely different.  Its not red, hot or swollen, but just this fluid type squashy mound!  I am a 51 year old lady, fairly fit apart from Glaucoma, and I am having investigations at present for neurological symptoms which I have had on and off for some years.
                                                        
                                                     
                                                    
                                                        
                                                            
                                                            
                                                            
                                                                posted on
                                                            
                                                                Sun, 12 May 2013 
                                                            
                                                            
                                                            
                                                            
                                                                
                                                                    
                                                                    
                                                                    Fri, 14 Jun 2013
                                                                    
                                                                    
  Answered on 
                                                                 
                                                                
                                                                    
                                                                    
                                                                    Fri, 14 Jun 2013
                                                                    
                                                                    
  Last reviewed on