A hand therapist is an occupational therapist or physical therapist who specializes in treating injuries and conditions of the entire upper extremity, from the shoulder down to the fingertips. These aren’t general rehab providers who occasionally treat hand injuries. They’ve completed years of focused training beyond their base license, accumulating thousands of clinical hours working specifically with upper extremity problems before they can call themselves specialists.
Training and Credentials
Hand therapists start as licensed occupational therapists (OTs) or physical therapists (PTs), then narrow their focus to the arm and hand through advanced clinical experience. The gold-standard credential in the field is the Certified Hand Therapist (CHT) designation, awarded by the Hand Therapy Certification Commission. To sit for that exam, a therapist must have practiced as an OT or PT for at least three years and logged a minimum of 4,000 hours of direct hand and upper extremity experience.
The certification isn’t a one-time achievement. To maintain it, a CHT must accumulate at least 2,000 hours of hand therapy work experience every five years, with at least half of those hours in direct patient care for first-time recertifiers. They also complete a minimum of 80 hours of continuing education during that same period. This ongoing requirement keeps their skills current as surgical techniques and rehabilitation protocols evolve.
What Hand Therapists Treat
The scope covers the shoulder, arm, elbow, forearm, wrist, and hand. Common reasons people end up in hand therapy include fractures, nerve injuries, tendon or ligament repairs, joint instability, and arthritis. But the list extends well beyond those basics. Repetitive strain conditions like carpal tunnel syndrome, post-surgical recovery after joint replacements or tendon transfers, crush injuries, burns, and complex pain conditions all fall within a hand therapist’s wheelhouse.
What makes hand therapy distinct from general physical therapy is the complexity of the anatomy involved. Your hand alone contains 27 bones, dozens of muscles, and an intricate web of tendons and nerves packed into a small space. A millimeter of scar tissue in the wrong spot can lock down a finger. That level of precision demands a specialist who understands exactly how these structures interact and heal.
What Happens at Your First Visit
An initial evaluation is thorough and hands-on. Your therapist will measure grip strength using a device called a dynamometer, test pinch strength, and assess your range of motion with a goniometer (essentially a protractor for joints). If nerve damage is a concern, they’ll run sensibility tests to check whether you can distinguish light touch, pressure, and the difference between one point of contact and two. They’ll measure any swelling, evaluate pain levels, and test the strength of individual muscles in your hand and wrist.
All of these baseline measurements serve a purpose. They give your therapist a starting point to track progress and help guide decisions about how aggressively to push rehabilitation. If you’re coming in after surgery, your first visit often includes removing post-operative bandages, inspecting and caring for the wound, and fabricating a custom splint if your surgeon has ordered one.
Custom Splinting
One of the most distinctive skills hand therapists bring is the ability to fabricate custom splints, also called orthoses, right in the clinic. Unlike prefabricated splints you’d buy at a pharmacy, these are molded directly to your body using thermoplastic material that softens in warm water. Your therapist measures the affected area, cuts the heated plastic to size, shapes it against your skin while it’s still pliable, then smooths the edges for comfort. The whole process typically wraps up in a single appointment.
The designs vary depending on your condition. A static splint holds a joint completely still, which is useful for protecting a healing fracture or tendon repair. A dynamic splint uses rubber bands or springs to apply a gentle, constant pull that gradually increases range of motion in a stiff joint. Serial static splints get remolded at regular intervals to progressively stretch tissue. Static progressive splints let you adjust the tension yourself between visits. Your therapist chooses the design based on what your tissues need at each stage of healing.
Reasons for splinting range from protecting damaged structures while they heal to correcting developing deformities, relieving pain in an arthritic joint, or retraining muscles after nerve damage.
The Post-Surgical Role
Hand therapists work closely with surgeons throughout your recovery. After procedures like tendon repairs, fracture fixation, or joint reconstruction, the rehabilitation plan requires careful timing. Move too little and scar tissue locks everything down. Move too aggressively and you risk re-rupturing a repair. Hand therapists manage that balance through controlled early mobilization protocols, advancing exercises in coordination with the surgeon’s timeline.
Scar management is a major part of post-surgical care. Hand therapists use techniques to minimize both the visible external scar and the internal adhesions that can tether tendons and limit motion. They also handle ongoing wound care and adjust or replace custom orthoses as your healing progresses and your needs change. This collaboration between surgeon and therapist is continuous, not a one-time handoff.
How Hand Therapy Differs From General Therapy
A general physical or occupational therapist can treat hand and arm conditions. The difference is depth of specialization. A hand therapist sees upper extremity cases all day, every day. They’ve spent thousands of hours learning the nuances of how a flexor tendon heals differently from an extensor tendon, which nerve injuries recover on their own and which don’t, and how to read subtle changes in swelling or skin color that signal a problem.
That concentrated experience matters most for complex cases: multi-structure injuries, failed prior surgeries, stiffness that hasn’t responded to standard therapy, or conditions where the margin for error is slim. For a simple wrist sprain, a general therapist may be perfectly adequate. For a replanted finger or a nerve graft, the expertise of a certified hand therapist can make the difference between a functional hand and one that never fully recovers.
How to Find One
If your doctor recommends hand therapy, ask specifically for a CHT or a therapist with significant upper extremity experience. The American Society of Hand Therapists maintains a directory on their website where you can search for certified practitioners by location. Many hand therapists work in outpatient orthopedic clinics, hospital-based rehab departments, or dedicated hand therapy practices. Your surgeon’s office will often have a therapist or clinic they routinely refer to and collaborate with, which can streamline communication about your care.