Method for emptying rectum

A method for emptying a rectum by using a retractable human body flushing means of an electronic sanitary appliance which is arranged on a toilet, the electronic sanitary appliance comprises a main body unit, a toilet seat, and a retractable human body flushing means which extends out to locate underneath of the toilet seat and retracts into the main body unit, the human body flushing means comprising a nozzle head with one rectum flushing nozzle for producing one first straight aiming water column for aiming at an anus of a user and for producing one second straight rectum-entering water column for entering into the rectum for a distance, the method comprising:

• 1) extending out the rectum flushing nozzle of the nozzle head so that it locates underneath of the anus of a user who is seated on the toilet seat;
• 2) generating the first straight aiming water column by the rectum flushing nozzle, spraying it to the anus, and adjusting the position between the rectum flushing nozzle and the user's anus so that the first straight aiming water column aims at the anus and the first straight aiming water column aligns with the anus;
• 3) then spraying the anus with a straight water column, which does not enter into the anus and is formed by increasing the pressure of the first straight aiming water column, so as to relax the muscle of the anus;
• 4) spraying the anus with the second straight rectum-entering water column from the rectum flushing nozzle which is formed by increasing relative water-pressure of the straight water column in step 3), so that the second straight rectum-entering water column passes through the anus in a straight line and enters into the rectum;
• 5) spraying continuously the second straight rectum-entering water column and stopping spray of the second straight water column when the user has a desire to defecate, so that the user evacuates substance in the rectum, wherein
• the rectum flushing nozzle is provided with a bore having a conical shape so that its diameter gradually reduces from its inlet diameter to its outlet diameter.