I fractured my tailbone years ago and it has healed well, other than aching a bit in the winter . During my 5th pregnancy , my tailbone became agony to sit on, but this resolved itself after the baby was born. Now, I get a sharp pain if I sit slouched on something hard. Upon investigation, I have discovered a pea sized lump attached to the very base of my coccyx . It is not in the skin . I can push it under and up the inside of my coccyx, but not out towards the skin, nor can I move it to either side. I m 26, female, bmi of 19 and healthy otherwise.
                                                        
                                                     
                                                    
                                                        
                                                            
                                                            
                                                            
                                                                posted on
                                                            
                                                                Fri, 26 Aug 2011 
                                                            
                                                            
                                                            
                                                            
                                                                
                                                                    
                                                                    
                                                                    Fri, 26 Aug 2011
                                                                    
                                                                    
  Answered on 
                                                                 
                                                                
                                                                    
                                                                    
                                                                    Sat, 27 Aug 2011
                                                                    
                                                                    
  Last reviewed on