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Topic IndexLibrary Index
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Preventing Bleeding During Chemotherapy
Chemotherapy can make your blood less able to clot. This is because it lowers the number of clotting cells (platelets) in your blood. As a result, your risk of bruising and bleeding goes up. To help prevent problem bleeding, use the tips on this handout.
Know what to expect
Some types of chemotherapy cause more bleeding problems than others. Your risk of bleeding increases over the course of treatment. Your risk is greatest during the period in each treatment cycle when your platelet count is lowest. This is called the nadir. Talk with your healthcare provider about your nadir. Then take extra care to prevent bleeding at that time.
Preventing bleeding and bruising
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When brushing your teeth, use a soft toothbrush. If flossing or using a dental water jet causes bleeding, stop until your platelet count increases.
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Talk to your dentist about postponing teeth cleanings or dental work.
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Shave with an electric razor, not a straight razor.
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Ask your healthcare provider which medicines you should stop taking. Anti-inflammatory medicines such as aspirin, naproxen, or ibuprofen make it harder for blood to clot. Talk with your healthcare provider about all the medicines you take. This includes over-the-counter medicines, vitamins, supplements, and herbs.
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Eat a high-fiber diet or take a stool softener to prevent constipation. Straining at stool can cause bleeding in your anus.
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Don't do contact sports or other activities likely to cause bruising.
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Don't use tampons, suppositories, or enemas.
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Protect your skin from cuts, scrapes, and sharp objects.
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Don't blow your nose or cough with great force.
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Keep your home safe to prevent injuries and falls.
When to call your healthcare provider
Call your healthcare provider right away if you have:
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Blood in your urine or stool
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Easy bruising
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Small red spots under your skin
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Bleeding that won’t stop, such as from your gums or nose
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Menstrual flow that is heavy or lasts longer than normal
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Vomiting
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Vision changes
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Frequent headaches
Online Medical Reviewer:
L Renee Watson MSN RN
Online Medical Reviewer:
Rita Sather RN
Online Medical Reviewer:
Todd Gersten MD
Date Last Reviewed:
12/1/2021
© 2000-2024 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.