Class IV laser therapy, also called Class 4 laser therapy, is a noninvasive treatment used to help reduce pain, manage inflammation, and support tissue healing. It delivers targeted light energy that interacts with cells through a process called photobiomodulation. This interaction can influence cellular energy production and processes involved in tissue repair. Depending on the treatment settings, laser therapy can also produce gentle warming and increase local circulation.

Class IV laser therapy may be incorporated into treatment for muscle and joint pain, neck and back pain, tendon injuries, plantar fasciitis, arthritis-related symptoms, and sports injuries. It may also be considered during postoperative rehabilitation to help manage discomfort and support recovery. At The Fitness Lab, your physical therapist evaluates your condition, stage of healing, and goals to determine whether laser therapy would be a useful addition to your care.

Class IV laser therapy may support tissue repair and can be considered as part of rehabilitation after certain surgeries. Research has shown healing benefits in some wound-care settings and improvements in pain and movement in some postoperative patients, although evidence remains limited for many orthopedic procedures.

At The Fitness Lab, your therapist considers your procedure, incision status, stage of healing, and surgeon’s precautions before recommending treatment. Laser therapy complements the mobility work, progressive strengthening, and activity guidance needed for recovery. Your return to activity follows your surgical precautions and rehabilitation milestones.

These treatments all use light, but their power, wavelengths, and delivery methods differ. Class IV therapeutic lasers generally offer higher power than cold lasers and many LED red light devices, allowing a selected energy dose to be delivered more quickly. Treatment results depend on the wavelength, dose, treatment area, and application technique. Your therapist selects the settings based on your condition and treatment goals.

Treatment should feel comfortable. You may notice gentle warmth as the applicator moves over the treatment area. There are no needles or incisions involved. Tell your therapist immediately if you feel excessive heat, stinging, or discomfort so the treatment can be adjusted.

Class IV laser therapy can be used safely with appropriate screening, protective eyewear, and carefully controlled treatment settings. Because these lasers can generate heat and pose an eye hazard, trained application is essential. Potential side effects include skin irritation or burns if used improperly. Your therapist will review your medical history, medications, skin sensitivity, and treatment area before recommending care.

The laser portion of treatment generally takes several minutes. The exact time depends on the size of the treatment area, the prescribed dose, and the condition being addressed. When laser therapy is included in a physical therapy visit, your appointment may also involve hands-on treatment, mobility work, and strengthening exercises.

Your treatment schedule depends on your condition, how long symptoms have been present, and your response to care. Some people notice short-term changes in discomfort early in treatment, while others need several visits to determine whether laser therapy is beneficial. Your therapist will recommend an initial plan and reassess your progress through changes in pain, movement, and activity tolerance. Early pain relief does not necessarily mean the tissue has fully healed.

Yes. When appropriate, laser therapy can be incorporated into a physical therapy plan that includes exercise, manual therapy, or dry needling. Laser therapy may help manage symptoms and support tissue recovery, while rehabilitation builds strength, mobility, and tolerance for activity. At The Fitness Lab, your therapist selects the combination and timing based on your condition, response to treatment, and goals.

Contact The Fitness Lab for current pricing and to discuss your insurance benefits. Coverage for physical therapy does not automatically mean that laser therapy is covered, and a separate out-of-pocket charge may apply. Ask our team about treatment costs and how laser therapy would fit into your care before scheduling.