The neurologic pathways for defecation are similar to those of the bladder. Many lacking voluntary control of the bowel may still be able to achieve continence by diet, strategic use of stool softeners and fiber, and the technique of rectal stimulation. In rectal stimulation, a finger is inserted into the rectum to cause the internal and external anal sphincters to relax allowing the stool to pass. Other aids include suppositories and oral medications. There are some surgical options, although this is rarely necessary.
Sexuality is a complex issue.
The bad news may be that sexual experience is impacted by spinal cord injury. The good news is that sensual experience and even orgasm are still possible. Many individuals with SCI find unexpected erogenous zones. Ultimately, sexual experience happens in the brain, not in any specific organ. Adjustment to altered sexuality is aided by an attitude of permissive experimentation, as the previous methods and habits may no longer serve.