Complications

Cancer and its treatment can cause several complications, including:

  • Pain: Pain can be caused by cancer or by cancer treatment.
  • Fatigue: Fatigue associated with chemotherapy or radiation therapy treatments is common, but it’s usually temporary.
  • Difficulty breathing. Cancer or cancer treatment may cause a feeling of being short of breath. Treatments may bring relief.
  • Nausea: Certain cancers and cancer treatments can cause nausea. Medications and other treatments may help you prevent or cope with nausea.
  • Constipation or Diarrhea: Cancer and cancer treatment can affect your bowels and cause diarrhea or constipation.
  • Weight loss: Cancer and cancer treatment may cause weight loss.
  • Immune System Reactions: The body’s immune system may react to the presence of cancer by attacking healthy cells. These reactions can lead to a variety of like difficulty walking and seizures.
  • Spreading Cancer: As cancer advances, it may spread (metastasize) to other parts of the body. Where cancer spreads depends on the type of cancer.
  • Cancer that Returns: Cancer survivors have a risk of cancer recurrence. Some cancers are more likely to recur than others. Ask your doctor about what you can do to reduce your risk of cancer recurrence.