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Chemotherapy (chemo) is the use of drugs to treat cancer. The drugs can be taken by mouth, or they can be injected by needle into a vein or muscle. To treat testicular cancer, the drugs are usually given into a vein (IV). Chemo is absorbed into the bloodstream and goes throughout the body to destroy cancer cells.
Chemo is often used to treat testicular cancer when it has spread outside the testicle. It's also used to help decrease the risk of cancer coming back after the testicle is removed. It's not used to treat cancer that's only in the testicle.
Chemo is given in cycles that generally last about 3 to 4 weeks. Each period of treatment is followed by a rest period to allow the body time to recover.
Using 2 or more chemo drugs often works better than using any single drug alone. The chemo regimens most used as the first treatment for testicular cancer are:
Some doctors use more intensive plans for patients with high-risk disease and may suggest a different combination of chemo drugs or even a stem cell transplant.
Chemo drugs attack cells that are dividing quickly, which is why they work against cancer cells. However, other cells in the body, such as those in the bone marrow (where new blood cells are made), the lining of the mouth and intestines, and the hair follicles, also divide quickly. These cells are also likely to be affected by chemo, which can lead to certain side effects.
The side effects of chemo depend on the type and dose of drugs used and how long they are given. These side effects can include:
Some of the drugs used to treat testicular cancer can have other side effects. For example:
Most side effects are short-term and go away over time after treatment ends, but some can last a long time and may never go away completely. Tell your treatment team about any side effects or changes you notice while getting chemo so you can get prompt treatment for them. There are often ways to prevent or lessen side effects. For example, there are drugs to help prevent or reduce nausea and vomiting. In some cases, the doses of the chemo drugs may need to be reduced, or treatment may need to be delayed or stopped to keep side effects from getting worse.
Some of the drugs used to treat testicular cancer can cause long-term side effects. These include some of the things mentioned earlier, like hearing loss and kidney or lung damage. Development of a second cancer (like leukemia) is a very rare but serious side effect of chemo, occurring in less than 1% of testicular cancer patients treated with chemo. People who've had chemo for testicular cancer seem to have a higher risk of heart problems later in life. Several studies have also suggested that chemo can sometimes cause high blood cholesterol to develop over time, which may later require treatment.
For more general information about how chemotherapy is used to treat cancer, see Chemotherapy.
To learn about some of the side effects listed here and how to manage them, see Managing Cancer-related Side Effects.
Developed by the American Cancer Society medical and editorial content team with medical review and contribution by the American Society of Clinical Oncology (ASCO).
Chovanec M, Cheng L. Advances in diagnosis and treatment of testicular cancer. BMJ. 2022 Nov 28;379:e070499. doi: 10.1136/bmj-2022-070499. PMID: 36442868.
National Comprehensive Cancer network. NCCN Clinical Guidelines in Oncology (NCCN Guidelines). Testicular Cancer. Version 1.2025 – Jan 17, 2025. Accessed at https://www.nccn.org on Feb 18, 2025.
Last Revised: August 10, 2025
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