What is a red flag in physical therapy?
When you visit a physical therapy clinic, most of the focus is on improving movement, reducing pain, and restoring function. Exercises, stretches, and hands-on treatments are the tools therapists use to help you recover. However, before beginning any treatment plan, your physical therapist carefully evaluates your condition to ensure it is safe to proceed. A critical part of this evaluation is identifying any “red flags.”
A red flag in physical therapy refers to signs or symptoms that could indicate a serious underlying medical condition. These are warning signals that your pain or mobility issues may not just be due to a muscle strain, joint issue, or postural problem. Detecting red flags early can prevent further injury, ensure timely medical intervention, and protect your overall health.
Common Red Flags in Physical Therapy
Physical therapists are trained to spot warning signs that may require further medical evaluation. Some of the most common red flags include:

Severe or worsening pain
Pain that persists at rest, worsens at night, or doesn’t improve with position changes may indicate a more serious condition than a simple musculoskeletal problem.

Unexplained weight loss or fatigue
Losing weight unexpectedly while experiencing pain can signal systemic issues, including infection or cancer.

Neurological symptoms
Numbness, tingling, weakness, or loss of coordination could indicate nerve compression or spinal cord involvement.

Loss of bowel or bladder control
This is a serious red flag that may suggest nerve damage or spinal issues that require urgent medical attention.

History of trauma or osteoporosis
Even minor injuries in people with fragile bones can lead to fractures or other complications.

Fever or night sweats
Combined with musculoskeletal pain, these symptoms may indicate an infection or inflammatory condition.
Why Red Flags Matter in Physical Therapy
- Refer you to a physician or specialist for further testing.
- Modify or delay therapy to avoid aggravating the underlying condition.
- Monitor your symptoms closely during treatment to ensure no serious issues develop.
Identifying red flags protects you from worsening your condition and ensures that any serious medical problems are addressed promptly.
Examples of Red Flags in Action
A patient comes in with lower back pain and numbness in their legs. Upon assessment, the therapist notices weakness and loss of reflexes. This could indicate a compressed nerve or herniated disc that needs urgent medical evaluation.
What You Can Do as a Patient
Be honest about your symptoms
Report unusual signs promptly
Follow your therapist’s recommendations
Bottom Line
At Specialized Spine Care in St Cloud, MN, our team carefully assesses every patient to identify potential red flags. By combining expert evaluation with personalized treatment, we ensure your care is both safe and effective. If you are experiencing pain, unusual symptoms, or changes in your body, don’t wait—contact us today for a thorough evaluation.