<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi, may I answer your health queries? Please type your query here... Hi I have this sort of a dull pinching pain on the right side of my stomach about a hand size space away from my navel, the pain isn t too unbearable but it is rather uncomfortable it occurs every now and again and also when i am sitting or standing is some positions i feel the pinching feeling more at night when I m laying flat. I had an umbilical hernia about 1.5years ago and noticed a lump before the surgery but this time there is not lump or bump so i am not to sure what it is.  <response>: Hi. Thanks for your query and an elucidated history. You have a history of Umbilical Hernia surgery. The pain in the area you noted is usually due to colitis or a kidney problem and rarely due to the scar of the previous surgery. I would advise you the following:First get a Physical Examination done by a General Surgeon as proper history taking and clinical evaluation does help in proper diagnosis. As per the findings to undergo, blood, urine and stool tests; Ultrasonography and CT scan of the abdomen; any further tests as may be required. The aim has to get a proper diagnosis and hence only a proper treatment can be planned. 