Chapter 2 : Signs and Symptoms



Signs and Symptoms arrow_upward


  • Cancer is a broad term that encompasses over one hundred different types of cancer.
  • Although each type has its own set of characteristics, there are some cancer symptoms that occur in many types of cancer.

  • Symptoms of Cancer arrow_upward



    Unexplained weight loss

  • An unexplained weight loss of 10 pounds or more may be the first sign of cancer, particularly cancers of the pancreas, stomach, esophagus, or lung.

  • Fever

  • A fever that is persistent or one that comes and goes frequently can signal stress on the immune system.
  • Less often, fever may be an early sign of cancer, such as with leukemia or lymphoma.

  • Persistent fatigue

  • May happen early in cancers such as leukemia, or if the cancer is causing an ongoing loss of blood such as in colon or stomach cancers

  • Pain

  • May be an early symptom in some cancers such as bone or testicular cancer

  • Skin changes

  • Cancers of the skin, and some internal cancers can cause signs visible on the skin, including darker skin, yellow or red skin, as well as itching or excessive hair growth.

  • Change in bowel habits

  • Long-term constipation, diarrhea, or a change in the size of the stool may be signs of colon cancer.
  • Pain with urination, blood in the urine, or a change in bladder function, including more or less frequent urination, could be related to bladder or prostate cancer.

  • Sores that do not heal

  • Skin cancers may bleed and look like sores that do not heal.
  • A long-lasting sore in the mouth could be an oral cancer.
  • Sores on the penis or vagina may either be signs of infection or an early cancer.

  • Unusual bleeding or discharge

  • Unusual bleeding can occur in either early or advanced cancer
    • Blood in the phlegm may be a sign of lung cancer
    • Blood in the stool, or a dark or black stool, could be a sign of colon or rectal cancer
    • Cancer of the cervix or the endometrium (lining of the uterus) can cause vaginal bleeding
    • Blood in the urine may be a sign of bladder or kidney cancer
    • A bloody discharge from the nipple may be a sign of breast cancer

    Thickening or Lump in Breast or Other Parts of the Body

  • Some cancers can be felt through the skin, mostly in the breast, testicle, lymph nodes (glands), and the soft tissues of the body
  • A lump or thickening may be an early or late sign of cancer

  • Indigestion or Trouble Swallowing

  • Indigestion or swallowing problems may be a sign of cancer of the esophagus, stomach, or pharynx (throat)

  • Nagging Cough or Hoarseness

  • A cough that does not go away may be a sign of lung cancer
  • Hoarseness can be a sign of cancer of the larynx (voice box) or thyroid
  • A chronic cough with blood or mucus can be symptom of lung cancer

  • Causes and Risk Factors for Cancer arrow_upward


  • A risk factor is something that increases chances of getting a disease

  • Tobacco

  • Smoking causes 30% of all cancer deaths in the U.S. and is responsible for 87% of cases of lung cancer
  • It can cause kidney, pancreatic, cervical, and stomach cancers and acute myeloid leukemia

  • Physical activity

  • Obesity is a major cause for many cancers.
  • Exercising on a regular basis can prevent prostate, colon, breast, endometrial and lung cancer.

  • Genetics

  • When cancer is genetic, a mutated gene has been passed down.
  • If you have a family history of cancer, such as breast cancer, taking extra precautions is vital.

  • Environmental factors

  • Exposure to asbestos and a group of minerals found in housing and industrial building materials can cause a variety of medical problems, such as mesothelioma.
  • People who are exposed to high amounts of benzene are at risk for cancer.

  • Unsafe sex

  • Practicing unsafe sex can increase risk of developing a virus called “HPV” (human papillomavirus).
  • HPV increases your risk factor for cervical, anal, vulvar and vaginal cancer.

  • Sun exposure

  • Skin cancer is caused by exposure to the UV rays of the sun.

  • Preventing Cancer arrow_upward


  • Avoid tobacco
  • Control diet and weight
  • Exercise regularly
  • Protect skin from sun
  • Avoid environmental and occupational carcinogens
  • Be aware of warning signs and get recommended screening tests


  • Thank You from Kimavi arrow_upward


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