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How are swollen lymph nodes a warning sign of cancer?

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Lumps in the side of your neck are most likely from strep throat or another infection. Less often, cancers like lymphoma or leukemia can make the lymph nodes swell up.

Breast cancer that has spread can cause swelling in lymph nodes under the arms. If the swelling doesn't go away in a week or so, have your doctor take a look.

SOURCES:

American Academy of Otolaryngology-Head and Neck Surgery: "Head and Neck Cancer."

American Cancer Society: "Benign breast conditions: Not all lumps are cancer," "Do I Have Testicular Cancer?" "Fever," "Lymph Nodes and Cancer," "Signs and Symptoms of Bladder Cancer," "Signs and symptoms of esophagus cancer," "Signs and symptoms of lung cancer."

American Kidney Fund: "Why do I have blood in my urine?"

American Society of Clinical Oncology: "Appetite Loss," "Weight Loss."

BreastCancer.org: "Symptoms of Breast Cancer."

Cancer Research UK: "Dealing with Sweating," "The Cancer Itself."

Cleveland Clinic: "Fatigue & Cancer Fatigue."

International Foundation for Functional Gastrointestinal Disorders: "Alarm Symptoms: A Cause for Alarm?"

Skin Cancer Foundation: "If You Can Spot It You Can Stop It."

UCLA: "Prostatitis."

UpToDate: "Patient information: Abnormal uterine bleeding (Beyond the Basics)," "Patient Information: Blood in the stool (rectal bleeding) in adults (Beyond the Basics)."

Reviewed by Brunilda Nazario on August 16, 2019

SOURCES:

American Academy of Otolaryngology-Head and Neck Surgery: "Head and Neck Cancer."

American Cancer Society: "Benign breast conditions: Not all lumps are cancer," "Do I Have Testicular Cancer?" "Fever," "Lymph Nodes and Cancer," "Signs and Symptoms of Bladder Cancer," "Signs and symptoms of esophagus cancer," "Signs and symptoms of lung cancer."

American Kidney Fund: "Why do I have blood in my urine?"

American Society of Clinical Oncology: "Appetite Loss," "Weight Loss."

BreastCancer.org: "Symptoms of Breast Cancer."

Cancer Research UK: "Dealing with Sweating," "The Cancer Itself."

Cleveland Clinic: "Fatigue & Cancer Fatigue."

International Foundation for Functional Gastrointestinal Disorders: "Alarm Symptoms: A Cause for Alarm?"

Skin Cancer Foundation: "If You Can Spot It You Can Stop It."

UCLA: "Prostatitis."

UpToDate: "Patient information: Abnormal uterine bleeding (Beyond the Basics)," "Patient Information: Blood in the stool (rectal bleeding) in adults (Beyond the Basics)."

Reviewed by Brunilda Nazario on August 16, 2019

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