You may experience both signs and symptoms of cancer, which can signal that something is wrong in your body. Recognizing these indicators can lead to an earlier diagnosis and possibly a better outlook.

How Does Cancer Cause Signs and Symptoms?

When cancer grows, it can push on nearby organs, nerves, and blood vessels, which can cause signs and symptoms. Even the smallest tumors can cause symptoms in certain organs, such as the brain.

If your cancer spreads, or metastasizes, you may notice signs or symptoms in different parts of your body.

Another reason you may experience symptoms is that cancer cells use up a lot of your body’s energy supply. They also cause changes in how your immune system works.


Some of the Most Common Signs and Symptoms of Cancer

Although every case is different, some general signs and symptoms of cancer include:

  • Weight loss Unexplained weight loss of 4kg or more may be one of the first signs of cancer. Weight loss is common in people who have pancreatic, stomach, esophageal, or lung cancer, but can occur with any type of cancer.
  • Fever Fevers frequently crop up when a cancer has metastasized. Night sweats often accompany the fevers. Nearly all people with cancer will experience a fever at some point.
  • Fatigue Feeling extremely tired can be a symptom of cancer in your body.
  • A lump A lump or thickening of skin can be an early or late sign of cancer. People with cancers in the breast, lymph nodes, soft tissues, and testicles typically have lumps.
  • Skin changes Yellowing, darkening, or redness of the skin can signal cancer. Also, sores that don’t heal should be checked out. Additionally, moles, freckles, or warts that change in color, shape, or size could be a sign of skin cancer.
  • Pain Most of the time, pain happens because the cancer has already spread in your body. But pain may be an early symptom of bone cancer or testicular cancer. Back pain is common in people with colorectal cancer, pancreatic cancer, or ovarian cancer. Those with brain tumors often complain of a headache that doesn’t go away.
  • Bowel or bladder function changes Constipation, diarrhea, and other bowel issues may be a sign of colorectal cancer. People with bladder cancer and prostate cancer may report pain during urination, blood in the urine, or other bladder-function changes.
  • Cough or hoarseness A cough that doesn’t go away or a hoarse voice may be a sign of lung cancer, cancer of the larynx, or thyroid cancer.
  • Indigestion Indigestion or problems swallowing can be a sign of stomach, esophageal, or throat cancer.
  • Bleeding Unusual bleeding is associated with many different cancers. Coughing up blood may signal lung cancer. Bloody stools could be a sign of colon or rectal cancer. Women with cervical or endometrial cancer may experience abnormal vaginal bleeding. Blood in the urine could mean you have bladder or kidney cancer. Bloody discharge from a woman’s nipple might indicate breast cancer.
  • Changes in your mouth White patches inside your mouth or on your tongue could be precancers that can turn into oral cancer. Sores, bleeding, or numbness in the mouth may also be a sign of certain cancers.
  • Swollen lymph nodes Sometimes, enlarged lymph nodes can signal cancer. You should have your doctor check it out if your gland remains swollen for three to four weeks.
  • Being out of breath Constantly feeling out of breath may be a sign of certain cancers.
  • Bloating A constant uncomfortable feeling of fullness that lasts daily for weeks could be a sign of ovarian cancer. 
  • Anemia Several cancers, including leukemia and lymphoma, can cause anemia (low red blood cell counts). These abnormal levels show up on blood tests. Having anemia can make you feel tired and weak.


Why Noticing Cancer Symptoms Is Important

Identifying symptoms can help you and your doctor detect your cancer earlier. This is important because the sooner cancer is found, the better your prognosis.

For example, melanoma can be effectively treated if it’s spotted early. The five-year survival rate is around 98 percent if the cancer hasn’t grown deep into the skin.

While symptoms are most likely caused by something other than cancer, you shouldn’t dismiss them. This is especially true if the problem has lasted a long time or has gotten worse.

For instance, ovarian cancer usually doesn’t cause any noticeable problems until it spreads to other organs. By the time this cancer causes signs or symptoms, it’s usually very advanced and difficult to cure.

It’s possible to spot cancers before you have any symptoms. Checkups and screening tests may be able to detect certain cancers in your body before they start affecting you.


When Should You Go to See Your Doctor to Be Checked Out?

It’s always a good idea to see your doctor if you have symptoms that concern you.

If you’re worried about developing cancer or have a family history of the disease but don’t have symptoms, it can still be helpful to talk to your doctor about your risk. Ask your healthcare provider about any screening tests or procedures that might be appropriate.


Source: https://www.everydayhealth.com/cancer/guide/cancer-symptoms/

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