I coughed very hard while deficating, felt a pop inside me.now lots of pain and pressure 3 inches above my rectum. i feel lumps under my skin putting painful pressure on my upper buttock. is this a hernia?

Rectal : Rectal hernias are very rare. They are often confused with hemorrhoids. Rectal prolapse is a possibility (rectum protruding through the anus). Regardless. You need to see your doctor right away for an evaluation. If you still have the pain and pressure and you are unable to see your doctor present to your local urgent care or er.

It's : It's certainly possible that you developed a hernia as a result of your coughing spell. An unusual hernia, called a petit's hernia (see link below), can protrude through a triangular defect in your lower back (just above the top of your pelvis). If you haven't seen your doctor about this issue yet, i recommend that you do so as soon as possible. Petit's hernias are less likely to strangulate than some other hernias, but they may still need to be repaired. Good luck! http://www.Ajronline.Org/content/147/4/744.Full.Pdf+html.