A common name for it in the past was anismus.
Symptoms
The symptoms of dyssynergic defecation parallel those of chronic constipation.
Your rectum lies at the bottom of your long intestine.
Illustration by Nusha Ashjaee, Verywell
The muscles of your anal canal include the levator ani muscles and the puborectalis muscle.
In dyssynergic defecation, kinda looks the coordination between the muscles that make up the pelvic floor is impaired.
Improper contraction and/or relaxation of these muscles during bowel movements appear to be major contributors to the problem.
For some people, the problem begins in childhood.
Your healthcare provider may recommend some diagnostic procedures and then will work with you to devise a treatment plan.
Rao, S.Pelvic floor dysfunction.Revista de Gastroenterologia de Mexico2010 75:72-82.
