Physical therapists diagnose and treat problems with movement, pain, and physical function. They work with people recovering from injuries, surgeries, and chronic conditions to restore mobility, build strength, and reduce pain without medication or surgery. Their scope is broader than most people expect: beyond helping someone rehab a torn ACL, physical therapists treat chronic back pain, neurological disorders, heart and lung conditions, pelvic floor dysfunction, and post-cancer recovery.
How a Physical Therapist Evaluates You
Your first visit is an evaluation, not a workout. The therapist collects a detailed history, then runs you through a series of tests and measures tailored to your problem. These typically cover how you walk, your balance, your posture, joint range of motion, coordination, and muscle strength. For someone with a shoulder injury, that might mean testing how far you can raise your arm and where the pain kicks in. For someone recovering from a stroke, it could involve assessing how safely you can stand up from a chair or walk across a room.
From that data, the therapist makes a functional diagnosis. This isn’t the same as a medical diagnosis from your doctor. Instead, it describes what your body can’t do well right now and why. A physical therapist might identify impaired joint mobility tied to inflammation, reduced endurance linked to a heart condition, or motor function deficits from a neurological disorder. That diagnosis drives a plan of care with measurable goals, a timeline, and a recommended frequency of visits.
What Happens During Treatment
Sessions typically last about 45 minutes. Most patients start at two to three visits per week and taper down as they improve, with a full course of treatment averaging 10 to 12 sessions spread over a few weeks to a few months. What fills those sessions depends entirely on your condition, but the core tools fall into a few categories.
Therapeutic exercise is the backbone of most treatment plans. Your therapist prescribes specific movements to rebuild strength, improve flexibility, or retrain coordination. These aren’t generic gym exercises. They’re selected and progressed based on your evaluation findings, and the therapist watches your form, adjusts resistance, and modifies the plan as you improve.
Manual therapy involves the therapist using their hands to mobilize stiff joints, release tight muscles, or manipulate soft tissue. This can range from gentle joint glides to deeper mobilization techniques. It’s often combined with exercise to get better results than either approach alone.
Gait and balance training helps people who struggle with walking or who are at risk of falling. This is especially common after joint replacements, strokes, or in older adults with balance problems. The therapist may use parallel bars, uneven surfaces, or specific drills to challenge your stability in a controlled setting.
Modalities like electrical stimulation, biofeedback, and aquatic therapy serve as supporting tools. Electrical stimulation can help activate muscles that aren’t firing properly or manage pain. Aquatic therapy uses water’s buoyancy to let people exercise with less stress on their joints. These are supplements to the active treatment, not replacements for it.
Physical therapists also prescribe and fit assistive devices. They may fabricate or modify splints, recommend braces, fit orthotics, or help you learn to use a cane or walker correctly.
Conditions Physical Therapists Treat
The range is wider than most people realize. Orthopedic injuries make up the most visible slice: ACL tears, rotator cuff damage, ankle sprains, meniscus tears, frozen shoulders, and fractures. Post-surgical rehab after hip, knee, or shoulder replacements is another major category. Spine conditions like chronic low back pain, neck problems, and sacroiliac joint dysfunction are among the most common reasons people seek physical therapy in the first place.
Beyond orthopedics, physical therapists treat neurological conditions such as stroke recovery, Parkinson’s disease, and other progressive disorders of the central nervous system. They work with patients who have cardiovascular and pulmonary problems, helping rebuild endurance after heart failure or lung disease. Specialized therapists treat pelvic floor dysfunction, osteoporosis, cancer recovery, headaches, and overuse injuries like tendonitis, bursitis, and shin splints.
Specialty Areas
Physical therapy has 10 board-certified specialties recognized by the American Board of Physical Therapy Specialties: orthopaedics, sports, neurology, geriatrics, pediatrics, cardiovascular and pulmonary, women’s health, oncology, wound management, and clinical electrophysiology. A therapist with board certification in one of these areas has passed an advanced exam and demonstrated deep expertise in that population.
In practice, this means the therapist treating your child’s developmental delays has a fundamentally different skill set than the one working with a college athlete’s torn ligament or an older adult recovering from a hip fracture. If your condition falls into a specific category, seeking out a specialist can make a meaningful difference in your outcomes.
Where Physical Therapists Work
About 34% of physical therapists work in outpatient clinics and private practices. Another 28% work in hospitals, where they see patients immediately after surgeries or acute medical events. Home health care accounts for 11%, with therapists visiting patients who can’t easily travel to a clinic, often older adults or people recovering from major procedures. Nursing and residential care facilities employ about 6%, and roughly 4% of physical therapists are self-employed.
Education and Direct Access
Physical therapists in the United States hold a Doctor of Physical Therapy (DPT) degree, which is a three-year graduate program after completing an undergraduate degree. About 77% of the curriculum is classroom and lab study, with the remaining 23% spent in clinical rotations. Students spend an average of 22 weeks in their final clinical experience alone, working directly with patients under supervision.
All 50 states, the District of Columbia, and the U.S. Virgin Islands allow some form of direct access to physical therapy, meaning you can see a physical therapist without a physician’s referral. The specific rules vary by state. Some allow unrestricted access, while others limit the number of visits or types of treatment a therapist can provide before requiring a referral. Check your state’s rules, and note that your insurance plan may still require a referral for coverage even if state law doesn’t.
Physical Therapy vs. Occupational Therapy
The two fields overlap but have distinct focuses. Physical therapists zero in on improving physical function, mobility, and strength. They assess and treat movement problems and musculoskeletal or neurological conditions. Occupational therapists focus on helping people perform the specific daily activities that matter to them: bathing, dressing, eating, working, and participating in social life. OTs take a broader view that includes cognitive, emotional, and environmental factors, and they often recommend adaptive equipment or home modifications.
A person recovering from a stroke might see both. The physical therapist would work on walking, balance, and leg strength. The occupational therapist would help them relearn how to button a shirt, cook a meal, or navigate their home safely. The two professions complement each other, and many patients benefit from both simultaneously.