By Mayo Clinic staff
Chemo brain is a common term used by cancer survivors to describe thinking and memory problems that can occur after cancer treatment. Chemo brain can also be called chemo fog, cognitive changes or cognitive dysfunction.
Though chemo brain is a widely used term, it's misleading. It's not yet clear that chemotherapy is the cause of concentration and memory problems in cancer survivors. And many cancer survivors with memory problems still score well on cognitive tests, leaving doctors wondering whether chemo brain really exists.
Despite the many questions, it's clear that the memory problems commonly called chemo brain can be a frustrating and debilitating side effect of cancer and its treatment. More study is needed to understand this condition.
Signs and symptoms of chemo brain may include:
Signs and symptoms of cognitive or memory problems vary from person to person and are typically temporary, often subsiding within two years of completion of cancer treatment.
Some addtional things I experienced include the following:
Black outs during active chemo and for a few days after, repeating myself because I could not remember what I had said previously, and forgetting conversations I had with family. I also experienced extreme dizziness and found my face on the cement sidewalk outside my house, without being able to recall how I fell. I could not remember my birthday, my age, the name of my doctor, the name of the clinic, nor the names of any one I met while high on chemo. I also got lost driving more than once in my home town.
It's been 6 months since my last chemo and my brain if just now waking up. I still struggle with spacial and short term memory, but my focus is much improved. When I asked the oncology staff why I was not told about these side effects the response was, because not everyone gets them. I was aghast that I was not better prepared for such extreme side effects. Knowing that I could continue to have symptoms up to two years has me a little freaked out, but everyday I work on improving my brain.
People often think that once a patient is finished with the poison hell called chemo, and there is no other cancer detected, that the ordeal is over. I am here to tell you that is not true. It is a long road out of purgatory, and the exit doors are aflame. They make you stand in them for about 30 days before they let you out.
Tomorrow: Radiation therapy, a month of sadistic torture