Chemotherapy is a medicine that doctors use to help kill cancer cells in your body. It can be given in different ways, like through a tube or a needle in your arm, or as a pill that you swallow.
When doctors talk about chemotherapy regimens, they are talking about a specific plan or schedule for how they will give you the medicine. This plan will depend on what kind of cancer you have and how advanced it is.
Imagine that the chemotherapy medicine is like a puzzle piece, and the doctor is trying to put together the right puzzle for your body. The doctor will choose which specific chemotherapy drugs to give you, how much of each drug to give, and how often you will get the treatment.
The doctor might also change the plan as you go along, based on how your body is responding to the treatment. Sometimes they will need to give you a break between treatments, so your body can rest and recover.
Overall, the goal of a chemotherapy regimen is to get rid of as many cancer cells as possible, while also keeping you as healthy as possible. It's important to follow the plan that your doctor gives you so that you can give your body the best chance to fight the cancer.