Chemotherapy can make you more likely to get infections. This happens because most anticancer drugs affect the bone marrow, making it harder to make white blood cells (WBCs), the cells that fight many types of infections. Your doctor will check your blood cell count often while you are getting chemotherapy. There are medicines that help speed the recovery of white blood cells, shortening the time when the white blood count is very low. These medicines are called colony stimulating factors (CSF). Raising the white blood cell count greatly lowers the risk of serious infection. Most infections come from bacteria normally found on your skin and in your mouth, intestines and genital tract. Sometimes, the cause of an infection may not be known. Even if you take extra care, you still may get an infection. But there are some things you can do. 
