<unk>  <unk>  is a medical test used to measure pressures in the anus and rectum and to assess their function. The test is performed by inserting a catheter, that contains a probe embedded with pressure sensors, through the anus and into the rectum. Patients may be asked to perform certain maneuvers, such as coughing or attempting to defecate, to assess for pressure changes.<unk>  is a safe and low risk procedure. From 2014 to 2018, the international<unk>  physiology working group (IAPWG) meet several times to develop consensus on indications for<unk> . Their assessment concluded that<unk>  was indicated when used in assessment of fecal incontinence, constipation, evacuation disorders (including Hirschsprung's disease), functional<unk>  pain and in the assessment of<unk>  function preoperatively or after a traumatic obstetric injury. In addition to the indications outlined by the IAPWG,<unk>  has been used as a component of<unk>  biofeedback. Since its introduction in 2007, high resolution<unk>  (HR-ARM) has increasingly replaced conventional<unk>  as the standard. There has been increasing usage of high-definition (3D)<unk>  (HD-ARM) as well. Current advances in<unk>  include the development of bedside portable technology.
Anorectal manometry
High resolution manometry
Endoanal ultrasound
Endorectal coil magnetic resonance imaging
Sigmoidoscopy
Transrectal ultrasonography
Transrectal biopsy
Rectal examination