If you’ve received chemotherapy as part of your colon cancer treatment, one of the side effects you may experience is numbness and tingling in you extremities, also known as peripheral neuropathy. It is damage to the nerves that transmit signals between the extremities and the central nervous system.
If you have numbness and tingling in your fingers or toes, notify your doctor immediately. Addressing peripheral neuropathy at the onset of symptoms can prevent a long-term problem. The numbness and tingling are the symptoms most often associated with peripheral neuropathy, though other symptoms exist. These include weakness, pain in the arms, hands, legs and/or feet, and abnormal sensations such as burning, tickling, pricking or tingling
Oxaliplatin chemotherapy, as well as other drugs for the treatment of colon cancer may cause peripheral neuropathy.
https://news.cancerconnect.com/colon-cancer/colon-cancer-understanding-peripheral-neuropathy
Lynch Syndrome Ireland 