Three potential side effects of breast cancer treatments

Cancer is a painful, potentially life-threatening disease. Though discomfort might be the first warning sign that compels people to visit their physicians on the road to receiving a cancer diagnosis, cancer treatments can produce a host of side effects, including pain, as well.

According to the Sidney Kimmel Cancer Center, breast-cancer treatments can create both long-term side effects and late side effects. Long-term side effects are those that begin during treatment and continue after all treatments have stopped, while late side effects refers to symptoms that can appear weeks, months, or even years after treatments have ended.

The list of potential side effects of breast cancer treatments is lengthy, but may include the following conditions or issues:


The nonprofit organization notes that fatigue is the most common side effect of breast-cancer treatments, with some estimates suggesting it affects as many as 90 percent of all patients.

Some breast-cancer patients may experience fatigue after treatment and find it’s worsening because they are eating less and not getting enough nutrients. In such instances, the initial fatigue may make people too tired to cook, ultimately contributing to more fatigue when they are not eating or eating convenient yet potentially unhealthy foods. Cooking healthy foods in bulk when fatigue is not overwhelming and accepting others’ offers to cook is a great way for cancer patients to ensure their diets are helping them combat fatigue and not making fatigue worse.


Johns Hopkins School of Medicine notes that, following breast-cancer treatment, some patients may suffer from lymphedema, a condition characterized by the accumulation of lymphatic fluid in the tissues. Lymphedema most often occurs in the arms, but can contribute to swelling in other parts of the body as well.

Why some people suffer from lymphedema after treatment and others don’t is a mystery, though surgeons at Johns Hopkins Breast Center have noticed a low occurrence of lymphedema in patients who have undergone sentinel node biopsies or axillary node dissection.

Breast-cancer patients are at risk of lymphedema for the rest of their lives after treatment, and while there’s no way to prevent it, patients should avoid getting needle sticks or blood pressure tests in arms where lymph nodes were removed. In addition, any injuries or cuts in arms where lymph nodes were removed should be treated with vigilance.


Many women will stop menstruating while undergoing chemotherapy or after chemo treatments, and that cessation is often temporary. These irregularities may be traced to hormonal therapies that make the ovaries stop producing eggs. However, in some instances, even premenopausal women may have trouble getting pregnant after hormonal therapy. notes that women whose periods do not return after treatment may still be fertile, but also notes that women who are close to menopause when beginning chemo may become permanently infertile. Women who have been diagnosed with breast cancer who are concerned about post-treatment infertility should speak with their physicians immediately about their prospects of getting pregnant after treatment, including fertility treatments and the potential safety risks of getting pregnant after being diagnosed with breast cancer.

Breast-cancer treatments save lives every day. When discussing treatments with their physicians, breast-cancer patients should ask questions about potential short- and long-term side effects.