What is Craniosacral?
Craniosacral therapy (CST) is a form of manual bodywork that employs light touch—typically no more than the weight of a nickel—to palpate subtle rhythmic movements in the body and support the optimal functioning of the central nervous system. All forms of craniosacral therapy derive from William Sutherland, an osteopath and student of Andrew Taylor Still in the late nineteenth century. Practitioners place their hands on the skull, spine, sacrum, or other areas to sense what they describe as the craniosacral rhythm and facilitate the release of fascial restrictions that may impede the flow of cerebrospinal fluid (CSF).
The term “craniosacral” refers to the relationship between the cranium (skull) and the sacrum (the triangular bone at the base of the spine). Central to the craniosacral system is the cerebrospinal fluid (CSF), a clear, colourless fluid that circulates around the brain and spinal cord, helping maintain the optimal environment for our central nervous system, providing nutrients, removing waste products, and cushioning the brain and spinal cord from physical shocks. CST practitioners work with the premise that this system exhibits a distinct rhythm—separate from cardiac and respiratory rates—that can be palpated throughout the body.
Origins & Lineage
The story of craniosacral therapy begins with the very important discovery by Dr. William Garner Sutherland (1873-1954), in the early 1900’s that the bones of the skull retain some movement throughout a person’s lifetime. As a senior at the American School of Osteopathy in 1899, he became fascinated with the bones of the cranium. While looking at a disarticulated skull, Sutherland was struck by the idea that the cranial sutures of the temporal bones where they meet the parietal bones were “beveled, like the gills of a fish, indicating articular mobility for a respiratory mechanism.”
To test this theory, he designed various devices that allowed him to exert pressure on his own head (cranial) bones and adjust them periodically. He discovered that the various pressures imparted on his head in various places created symptoms such as headaches, vision changes, nausea, mood changes, and decreased mental functions, among others. His work became known as cranial osteopathy.
The Osteopathic Cranial Academy was established in Indianapolis, Indiana, in 1947, and instructors there continue to teach Doctors of Osteopathy, medical doctors and dentists an expansion of the general principles of osteopathy. Dr. Sutherland died in 1954 but his work lives on here in the United States and in many other parts of the world.
It was in 1970, during a neck surgery in which he was assisting, that osteopathic physician John E. Upledger first observed the rhythmic movement of what would soon be identified as the craniosacral system. From 1975 to 1983 he served as clinical researcher and Professor of Biomechanics at Michigan State University, where he supervised a team of anatomists, physiologists, biophysicists and bioengineers in research and testing. The results not only confirmed Sutherland’s theory, but led to clarification of the mechanisms behind this motion - the craniosacral system. Moreover, he made this therapy also available to healthcare workers who were not medical doctors.
A distinct branch emerged in the mid-1980s. Franklyn Sills began teaching a biodynamic approach to craniosacral therapy in 1986, which has continued to grow and develop over many years. The biodynamic approach has its origins in the clinical exploration of W. G. Sutherland, DO, (1873-1954), the founder of osteopathy in the cranial field and “forefather of craniosacral therapy.” In the last ten years of his life, his work changed from a biomechanical approach to a fully holistic orientation toward the ordering and enlivening forces present in the human system. Sutherland described his experiences of a mysterious presence, the “Breath of Life,” from which ordering forces and healing intentions arose.
How It’s Practiced
A craniosacral session typically lasts 45 to 60 minutes, with the client fully clothed lying on a treatment table. By quietly resting the hands on your skull and sacrum, the therapist evaluates your craniosacral rhythms. She then uses the bones of the sacrum and cranium as “handles” to manipulate the deeper layers of fluid and membranes. No instruments or devices are used. The touch is extremely gentle.
The craniosacral rhythm typically oscillates at a rate of 6-12 cycles per minute, distinct from both the cardiac and respiratory rhythms, and practitioners learn to sense its quality, amplitude. Therapists are trained to feel for imbalances or restrictions in the craniosacral rhythm during their assessment. By palpating the craniosacral system, practitioners can detect subtle changes and disturbances in the rhythm that may indicate underlying issues. This sensitivity helps them identify areas where the flow of cerebrospinal fluid or the movement of cranial bones and connective tissues might be restricted, guiding the therapeutic process.
Once imbalances have been identified, therapists work to facilitate the release of fascial restrictions, allowing for improved flow of cerebrospinal fluid throughout the craniosacral system. This process often involves a series of gentle manipulations and holds that encourage the body’s self-corrective mechanisms to engage.
Biodynamic craniosacral therapy (BCST) differs in orientation. He urged practitioners to let the unerring potency (life force) do the work and to introduce no external force into the patient’s system. Work changed from analysis, motion texting and application of techniques, to the primacy of presence and stillness, and an orientation to primary respiration and the Intelligence it manifests.
Craniosacral Today
Today, craniosacral therapy is practiced globally by osteopaths, massage therapists, physical therapists, bodyworkers, and specialized CST practitioners. Training is offered through multiple institutions, with the Upledger Institute being the largest educator in biomechanical CST, while biodynamic training programs are offered through organizations such as the Karuna Institute in the UK, the Craniosacral Therapy Educational Trust (CTET), and the Biodynamic Craniosacral Therapy Association of North America (BCTA/NA).
Practitioners may be found in integrative health clinics, wellness centers, and private practice. Sessions are sought for conditions ranging from chronic pain and migraine to post-traumatic stress, birth trauma, and general stress reduction. The work is also used as preventive care and for supporting nervous system regulation.
Common Misconceptions
Craniosacral therapy is controversial within mainstream medicine. Craniosacral therapy (CST) or cranial osteopathy is a form of alternative medicine that uses gentle touch to feel non-existent rhythmic movements of the skull’s bones and supposedly adjust the immovable joints of the skull to achieve a therapeutic result. CST is a pseudoscience and its practice has been characterized as quackery. It is based on fundamental misconceptions about the anatomy and physiology of the human skull and is promoted as a cure-all for a variety of health conditions.
Tests show that CST practitioners cannot in fact identify the purported craniosacral pulse, and different practitioners will get different results for the same patient. Reliability studies of the manual diagnosis of disturbed cranial rhythms have been disappointing.
It is important to note that craniosacral therapy is not a replacement for medical treatment, especially in acute or serious conditions. According to the American Cancer Society, although CST may relieve the symptoms of stress or tension, “available scientific evidence does not support claims that craniosacral therapy helps in treating cancer or any other disease”. While some recipients report subjective benefits such as relaxation and stress relief, the mechanisms proposed by practitioners remain unproven by rigorous scientific study.
How to Begin
Those curious about craniosacral work should seek practitioners credentialed by reputable training organizations. In the biomechanical tradition, look for CST-D (Diplomat) certification from the Upledger Institute. For biodynamic work, seek RCST® (Registered Craniosacral Therapist) certification from BCTA/NA or CTET.
Franklyn Sills’ two-volume Foundations in Craniosacral Biodynamics (North Atlantic Books) is the definitive text for biodynamic practice. For the Upledger approach, John Upledger’s CranioSacral Therapy provides a practitioner-oriented introduction. Cherionna Menzam-Sills’ The Breath of Life: An Introduction to Craniosacral Biodynamics offers an accessible entry point for general readers.
A first session typically begins with an intake conversation followed by hands-on work. Expect subtle sensations, deep relaxation, or emotional release. Approach with curiosity rather than expectation, and communicate openly with your practitioner about your experience.
