In this video, Mark Yoder (N.P., Oncology) explains neuropathy, or nerve damage, and some tips for dealing with this common treatment side effect. Cancer and, more frequently, its treatment can cause nerve damage. Since many different nerves can be damaged, a variety of side effects are possible. If the nerves to the muscles are damaged, you may experience muscle weakness, spasms, muscle control and physical balance challenges, as well as changes in other physical functions such as breathing or digestion.