sh against this tight anal spincter with his diaphragm. Just as Mom pushed during delivery, and with seemingly equal discomfort. Hence the grunting and red-faced straining.<br /><br />  The other major problem of both breast or bottle fed newborns which creates this sort of straining is dyschezia, or uncoordinated stooling.<br /><br />The cure for the problem of a tight anus is pretty simple: a gentle rectal exam with a well-lubricated pinky finger by the doctor (which should be done on all babi