Cryotherapy can sometimes worsen which symptom?

• A. Spasms
• B. Edema
• C. Numbness
• D. Joint stiffness

Answer: (A)

Cold therapy can paradoxically provoke reflex muscle contractions. While it’s often used to reduce pain and swelling, applying cold can irritate skin and muscle spindle receptors, triggering a protective reflex that increases muscle tone and can produce or worsen muscle spasms. This is more likely if the temperature is too cold, the duration is too long, or the area has heightened sensitivity or active guarding. To minimize this, keep the treatment within recommended times, use a barrier between skin and the cold source, and monitor the patient’s response.

Edema is typically reduced with cryotherapy due to vasoconstriction and decreased capillary permeability. Numbness is an expected effect from slowed nerve conduction, not a worsening symptom. Joint stiffness may change transiently with temperature, but cryotherapy’s goal is usually to decrease stiffness and pain, not worsen it.