Prostate Cancer: Dealing With Fatigue

Medically Reviewed by Nazia Q Bandukwala, DO on June 11, 2024

Written by WebMD Editorial Contributor

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Cancer-Related Fatigue

Fatigue is a common side effect of cancer and its treatments, especially in patients with prostate cancer. It can significantly impact your daily life, making it difficult to perform ordinary tasks and enjoy activities. 

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What Causes Cancer-Related Fatigue? 

The exact cause of cancer-related fatigue is unknown, but it's believed to stem from the disease itself or its treatments. Chemotherapy, radiation therapy, and combination therapy can cause fatigue in cancer patients. Fatigue can also be a side effect of medications used to treat other symptoms, such as pain, nausea, and depression. 

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What Else Contributes to Fatigue? 

Tumor cells competing for limited nutrients, decreased appetite, and chemotherapy-induced anemia can all lead to fatigue. Chronic pain, stress, and depression can also play a significant role. 

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What Can I Do to Combat Fatigue? 

The best way to combat fatigue is to treat the underlying cause. But there are ways you can manage and decrease fatigue at home. Knowing your energy level and identifying warning signs of fatigue can help you plan rest periods and pace yourself throughout the day. Eating a healthy diet, getting moderate exercise, and learning to manage stress can help, too. 

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When Should I Call My Doctor? 

While cancer-related fatigue is common, you should tell your doctor if it affects you. Sometimes, fatigue can be a sign of an underlying medical problem that your doctor can identify and treat. Other times, your doctor may have specific suggestions to help manage your fatigue. You should also always discuss symptoms like shortness of breath, uncontrolled pain, or other treatment side effects.

Work with your doctor to understand the causes of your fatigue and how to treat it and improve your quality of life.