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daily anal stimulation is a safe toilet training program, with rare side effects. Early toilet training is effective for infantile functional constipation it triggers defecation regularly, and it effectively builds proper toilet habits. Anal stimulation for ifc infants, anal stimulation with specific bougie was used to promote regular defecation. The bougies were made of plexiglass, which were approximately 21 cm in length and of various diameters ranging from 11 to 22 mm (f11f22). Stimulation of the parasympathetic will cause the detrusor muscle (urinary bladder wall) to contract and simultaneously relax the internal sphincter muscle between the bladder and the urethra, allowing the bladder to void. Also, parasympathetic stimulation of the internal anal sphincter will relax this muscle to allow defecation. Anal sex or anal intercourse is generally the insertion and thrusting of the erect penis into a persons anus, or anus and rectum, for sexual pleasure. Other forms of anal sex include fingering, the use of sex toys for anal penetration, oral sex performed on the anus (), and pegging. Although anal sex most commonly means penileanal penetration, sources sometimes use anal intercourse to. Obstructed defecation is a disorder of function attributable to either an inadequate pushing force or an inability to overcome resistance to expulsion caused by inadequate relaxation of the external anal sphnicter (i. 10 in addition to excessive straining during defecation, other features of obstructed defecation.).