University of California San Francisco | About UCSF | UCSF Benioff Children's Hospital San Francisco
Search Site | Find a Doctor
Center for Pelvic Physiology

The Center for Pelvic Physiology uses technology to evaluate patients with fecal and urinary incontinence, constipation, pelvic floor disorders, urinary tract disorders and anal and rectal tumors or fistulas. Established in 1995, we recently expanded our services and moved into a new state-of-the-art facility.

A specially trained nurse and board-certified colorectal surgeons or urogynecologists conduct comprehensive evaluations for our patients. We offer biofeedback therapy as well as innovative surgical therapies for fecal and urinary incontinence. Our patients who don't respond to conventional care may participate in clinical trials or research projects that test new, experimental therapies.

  • Show More

Procedures Offered

Services offered at the center include:

  • Anorectal Manometry — Measures internal and external sphincter pressures, rectal sensation, rectal volume capacity and recto-anal inhibitory reflex (RAIR), which can confirm or exclude a diagnosis of Hirschsprung's disease
  • Puborectalis Muscle Fiber Recruitment — Measures neuromuscular activity that helps diagnose pelvic floor dysfunction
  • Pudendal Nerve Testing — Evaluates the presence and response rate of the pudendal nerve, which may impact fecal incontinence
  • Endoanal Ultrasound — Evaluates the integrity of internal and external sphincter for incontinence and fistula-in-ano
  • Endorectal Ultrasound — Evaluates the depth of rectal tumors for staging
  • Biofeedback — Functional training of rectum, anal sphincter and pelvic floor muscles to treat fecal incontinence and constipation
  • Urodynamic Testing — This includes:
    • Cystoscopy — Evaluates the urethra and bladder for intrinsic lesions by direct visualization
    • Cystometrogram (CMG) — Pressure filling study used to evaluate bladder capacity, sensation and urinary incontinence
    • Urethral Pressure Profile (UPP) — Evaluates urethral closure pressure, a measure of severity of stress incontinence
    • Uroflometry/Voiding Pressure Study — Evaluates voiding mechanism and function

Conditions Treated

Some of the conditions evaluated at the center include:

  • Show Less

You'll need a referral from your primary care provider or specialist to make an appointment. Once you have the referral, please call the number below.

Getting Here

Center for Pelvic Physiology
2330 Post St., Suite 260
San Francisco, CA 94115
Urinary Incontinence and Urodynamics Testing: (415) 885-7788
All Other Appointments: (415) 885-7673
Fax: (415) 885-7678

Hours: Office open Monday to Friday, 9 a.m. – 4:30 p.m.

Appointment hours vary

Access Your Health Information Online

This clinic uses UCSF MyChart, an online patient service. Message your provider, request medication refills, view some test results and more.

Learn more about UCSF MyChart

Research and Clinical Trials


Referring physicians should fax notes from the last office visit as well as reports for the following tests, if applicable:

  • Barium enema
  • CT scan
  • Colonic transit studies
  • Colonoscopy
  • Defecography
  • KUB X-ray
  • Sigmoidoscopy

General fax: (415) 885-7678
Urinary Incontinence and/or Urodynamic Testing Fax: (415) 353-9550


Parking at Mount Zion

Public parking is available in two parking garages near our Mount Zion campus. One is a UCSF garage at 2420 Sutter St.and the other is a public garage at 1635 Divisadero St. Entrances to both garages are on Sutter Street, between Divisadero and Broderick streets.

The 2420 Sutter St. garage is open 6 a.m. to 10 p.m., Monday to Friday, and closed on weekends and UCSF holidays. The rate is $6 an hour with a $30 daily maximum. Those with a valid disabled placard may have their parking fee waived by obtaining a parking voucher from their clinic or the lobby information desk at 1600 Divisadero Street. Present the voucher, your disabled parking placard and your garage receipt to the cashier.

For more information about parking in the 2420 Sutter St. garage, call (415) 514-8935.

The public parking lot at 1635 Divisadero St. garage is open from 5:30 a.m. to 9 p.m., Monday to Friday, and closed on weekends and major holidays. The rate is $2 each 20 minutes with a $28 daily maximum. UCSF parking vouchers are not valid at the 1635 Divisadero St. garage.

For more information about the public parking lot in the 1635 Divisadero St. garage, call (415) 441-5408 or visit

Other public parking garages are available nearby.

Metered street parking is rarely available.

Public Transportation

Mount Zion

UCSF Medical Center at Mount Zion is accessible via the following Muni bus routes:

  • No. 2*
  • No. 38*
  • No. 24

The No. 1 California bus route stops at the corner of California and Divisadero streets, which is three blocks north of Mount Zion.

For more information about Muni, visit

* Wheelchair accessible bus routes

UCSF Shuttles

Free UCSF shuttles travel between the Parnassus and Mount Zion campuses as well as other UCSF locations.

For more information about UCSF transportation, please call (415) 476-1511.

Related Information

Ways to Give

Clinic Team

Madhulika Varma
Dr. Madhulika Varma,
colorectal surgeon
Hueylan Chern
Dr. Hueylan Chern,
colorectal surgeon
Sharon Knight
Dr. Sharon Knight,
urogynecologist, medical director of the Women's Continence Center
Abner Korn
Dr. Abner Korn,
Leslee Subak
Dr. Leslee Subak,
Susan Wong
Susan Wong,
registered nurse