chemotherapy-induced peripheral neuropathy
/ CIPN /
Some of the drugs that kill cancer cells also injure the long, delicate nerves that run to the hands and feet. The result, for many patients, is a strange and distressing pattern: numbness, tingling, pins-and-needles, or burning pain that starts in the toes and fingertips and creeps inward in a 'stocking-and-glove' distribution. Chemotherapy-induced peripheral neuropathy (CIPN) is this nerve damage caused by certain chemotherapy drugs.
Because the affected nerves carry both sensation and, sometimes, signals to muscles, the consequences are functional as well as unpleasant. People may not feel the floor properly, so balance suffers and falls become more likely; numb fingers fumble buttons, coins, and keys; and burning neuropathic pain can disturb sleep. The rehabilitation role is to keep people safe and functioning: balance and gait training, strengthening, fall prevention and home safety, occupational-therapy strategies and adaptive tools for fine tasks, protective foot care for insensate feet, and managing neuropathic pain through the team. Sensation may not return, so much of the work is about adapting and compensating.
An important and sobering honesty: there is no proven way to reliably reverse CIPN once it is established, and the main proven prevention is for oncologists to adjust the chemotherapy dose, which competes against the need to treat the cancer. Many widely promoted supplements and devices lack good evidence. Rehabilitation does not regrow nerves; it reduces the fall risk, pain, and loss of independence that the neuropathy causes, and exercise during treatment shows some promise in lessening its severity.
After several chemotherapy cycles, a woman cannot feel her feet on the stairs and has nearly fallen twice. Rehabilitation adds balance training, a hand rail at home, and well-fitting non-slip shoes; she also learns to check her numb feet daily for unnoticed injuries.
CIPN endangers balance and fine hand use; rehab targets safety, function, and pain rather than nerve regrowth.
There is no reliable cure once CIPN is established, and most marketed supplements lack good evidence. Rehab manages the falls, pain, and dependence it causes; numb feet need protective care because injuries go unfelt.