Physical therapy typically takes 30 to 60 minutes per session, with most treatment plans lasting anywhere from a few weeks to several months depending on the condition. Your first visit usually runs longer, often 60 minutes or more, because it includes a full evaluation of your movement, strength, and pain levels. Follow-up sessions are generally 30 to 45 minutes.
But the question most people really want answered isn’t about a single appointment. It’s about how long the whole process takes before you’re done. That answer depends heavily on whether you’re recovering from surgery, treating an injury, or managing chronic pain.
How Often You’ll Go Each Week
There’s no single standard for how many times per week you should attend physical therapy. Protocols range from twice a week to five days a week, and the right frequency depends on what you’re being treated for and how far along you are in recovery. For chronic low back pain, for example, some treatment plans call for 15 sessions spread over three weeks at five days per week, while others spread just six sessions across three weeks at two visits per week. Both approaches have been studied, and the research shows no clear consensus on which frequency is best for every situation.
In general, acute injuries and early post-surgical recovery tend to require more frequent visits, sometimes three times per week. As you improve, your therapist will typically taper the frequency down to once or twice a week before discharging you entirely.
Recovery Timelines for Common Conditions
ACL Reconstruction
Rehabilitation after ACL surgery is one of the longer recovery roads in physical therapy, spanning 9 to 12 months total. The process moves through distinct phases. In the first six weeks, the focus is on reducing swelling, restoring range of motion, and rebuilding basic quadriceps strength. By weeks 7 through 9, you’re working on balance, coordination, and aerobic conditioning, with the goal of achieving full, symmetrical range of motion in both knees.
Running typically begins around weeks 10 to 16, once your surgical leg reaches about 80% of the strength in your other leg. Jumping, sprinting, and agility work start between months 4 and 6. Full clearance to return to sport and competition happens between months 6 and 12, and only after strength and hop testing show at least 90% symmetry between legs. Your confidence and comfort level also factor into that decision.
Rotator Cuff Repair
Shoulder surgery recovery follows a slower, more cautious timeline. For the first 6 to 10 weeks, your therapist will move your arm for you through passive range of motion exercises, meaning you aren’t using your own muscles to lift or rotate. Active motion, where you start moving the shoulder yourself, doesn’t begin until around weeks 14 to 18. Strengthening with resistance bands or light weights starts even later, between weeks 18 and 22. Total rehabilitation commonly takes five to six months.
Total Hip Replacement
After a hip replacement, the first phase of rehab takes about six weeks and focuses on safe mobility, walking with an assistive device, and basic exercises to prevent stiffness. Phase two runs from weeks 6 through 12, building strength and gradually returning to daily activities. The final phase can extend from 12 to 24 weeks after surgery, depending on your personal goals. Someone who wants to return to golf or hiking, for instance, will need more time than someone whose goal is pain-free walking. No formal clinical practice guidelines exist for post-hip replacement rehab duration, so timelines vary between surgeons and therapists.
Chronic Low Back Pain
Low back pain is one of the most common reasons people start physical therapy, and it’s also one of the hardest to pin down in terms of duration. Treatment plans range from 6 to 15 sessions, and there is no consensus on the optimal number. Some people feel significantly better after three or four weeks. Others with long-standing pain or multiple contributing factors may attend therapy for two to three months or longer.
Why Your Body Sets the Pace
Physical therapy timelines aren’t arbitrary. They follow the biology of how tissue heals. When a tendon, muscle, or ligament is injured, the body moves through three overlapping stages of repair that set hard limits on how fast you can safely progress.
The inflammatory stage lasts about 48 hours. During this time, the body sends blood cells and immune cells to the injury site to clean up damaged tissue. The proliferative stage follows, lasting 7 to 21 days, during which the body lays down new (but weaker) connective tissue to bridge the gap. The final remodeling stage begins months after the injury and can last longer than 12 months. This is when the body replaces that temporary tissue with stronger, more organized fibers that align along the direction of stress.
This is why your therapist won’t let you do heavy strengthening two weeks after a tendon repair, even if you feel ready. The new tissue simply isn’t mature enough to handle the load. Pushing too hard during the proliferative phase risks re-injury and a longer recovery overall.
What Can Shorten or Lengthen Your Timeline
Several factors influence how quickly you move through physical therapy. Your age, overall health, the severity of the injury, and whether you had surgery all play a role. But one factor you can directly control is your home exercise program.
Your therapist will give you exercises to do between visits, and how consistently you do them has a real impact. Patients who don’t follow their home program tend to extend the total duration of treatment and get less out of each session. Think of your in-clinic visits as check-ins and progressions. The daily home exercises are where much of the actual healing stimulus happens.
Other factors that can extend your timeline include having multiple conditions at once (a torn meniscus alongside the ACL, for example), diabetes or other conditions that slow tissue healing, smoking, and obesity. On the flip side, younger patients with isolated injuries and good baseline fitness often recover faster than average timelines suggest.
How Your Therapist Decides You’re Done
Discharge from physical therapy isn’t based on a fixed number of visits. Your therapist tracks objective measures of your progress, including range of motion, strength compared to your uninjured side, balance, and your ability to perform functional tasks like walking, climbing stairs, or reaching overhead. Standardized mobility scales are also used: patients who score high enough on basic mobility and daily activity assessments, indicating they need little to no assistance, are considered ready for discharge.
For athletes, the bar is higher. Return-to-sport clearance after ACL surgery, for instance, requires at least 90% limb symmetry on strength and hop tests, no pain or swelling, and a psychological readiness assessment. Meeting these benchmarks matters more than hitting a specific number of weeks on the calendar.
If you’re making steady progress, your therapist may also transition you to an independent gym program before formally discharging you, giving you a structured plan to continue building strength on your own. This “step-down” approach is common in the later stages of recovery for surgical patients.