Signs and Symptoms of Cancer
What are signs and symptoms?
Signs and symptoms are both signals of injury, illness, disease - signals that something is not right in the body.
A sign is a signal that can be seen by someone else - maybe a loved one, or a doctor, nurse, or other health care professional. For example, fever, fast breathing, and abnormal lung sounds.
A symptom is a signal that is felt by the person who has it, but can not be easily seen by anyone else. For example, weakness, aching, and feeling short of breath may be symptoms of pneumonia.
Having one sign or symptom may not be enough to figure out what's causing it. For example, a rash in a child could be a sign of a number of things, such as poison ivy, measles, a skin infection, or a food allergy. But if the child has the other symptoms and symptoms like a high fever, chills, achiness, and a sore throat, then a doctor can get a better picture of the illness. Sometimes, a patient's signs and symptoms still do not give the doctor enough to be sure what's causing the illness. Then medical tests, such as x-rays, blood tests, or a biopsy may be needed.
How does cancer cause signs and symptoms?
Causes of almost any sign or symptom. The signs and symptoms will depend on where the cancer is, how it is and how much it affects the organs or tissues. If a cancer has spread (metastasized), signs or symptoms may appear in different parts of the body.
It can begin to push on nearby organs, blood vessels, and nerves. This pressure causes some of the signs and symptoms of cancer. If the cancer is in a critical area, such as certain parts of the brain, even the smallest tumor can cause symptoms.
It sometimes will not cause any signs or symptoms until it has grown quite large. Cancers of the pancreas, for example, usually do not cause symptoms until they grow large enough to press on the nerves or organs (this causes back or belly pain). Others may grow around the bile and block the flow of bile. This causes the eyes and skin to look yellow (jaundice). By the time a pancreatic cancer causes signs or symptoms like these, it's usually in an advanced stage. It means it has grown and spread beyond the place it started - the pancreas.
A cancer may also cause symptoms like fever, extreme tiredness (fatigue), or weight loss. This may be because cancer cells use up much of the body's energy supply, or they may release substances that change the way the body makes energy from food. Cancer can also cause the immune system to react in ways that produces these signs and symptoms.
Sometimes cancer cells release substances into the bloodstream that cause symptoms that are not usually linked to cancer. For example, some cancers of the pancreas can release substances that cause blood clots in veins of the legs. Some lung cancers make hormone-like substances that raise blood calcium levels. This affects nerves and muscles, making the person feel weak and dizzy.How are signs and symptoms helpful?
Treatment works best when cancer is found early - while it is still small. This often means a better chance for a cure, especially if the cancer can be removed with surgery.
A good example of the importance of finding cancer is melanoma skin cancer. It can not be deep into the skin. The 5-year survival rate at this early stage is around 98%. Once melanoma has spread to other parts of the body, the 5-year survival rate drops to about 16%.
Sometimes people ignore symptoms. Maybe they do not know that the symptoms could mean something is wrong. Or they might be frightened by what the symptoms could mean. Maybe they just can not afford to get medical care.
Some symptoms, such as tiredness or coughing, are caused by something other than cancer. Symptoms can seem unimportant, especially if there's a clear cause or the problem only lasts a short time. In the same way, a person may cause a symptom like a breast lump is probably a cyst that will go away by itself. But no symptom should be ignored or overlooked, especially if it has lasted a long time or is getting worse.
Most likely, symptoms are not caused by cancer, but it's important to have them checked out, just in case. If a cancer is not the cause, a doctor can help figure out what the cause is and treat it, if needed.
Sometimes, it's possible to find cancer before having symptoms. The American Cancer Society and other health groups recommend cancer-related check-ups and certain tests for people even though they have no symptoms. This helps find certain cancers early, before symptoms start. The American Cancer Society Guidelines for the Early Detection of Cancer. But keep in mind, even if you have these recommended tests.
What are some general signs and symptoms of cancer?
General signs and symptoms of cancer. But remember, with these signs and symptoms, too. If you have any of these symptoms, please see a doctor.
Unexplained weight loss
Some people with cancer will lose weight at some point. It's called an unexplained weight loss. An unexplained weight loss of 10 pounds or more may be the first sign of cancer. This happens most often with cancers of the pancreas, stomach, esophagus (swallowing tube), or lung.
Fever
Fever is very common with cancer, but it has often happened after cancer has spread from where it started. Almost all people with cancer will have fever at some time, especially if the cancer or its treatment affects the immune system. (This can be a harder for the body to fight infection.) Less often, may be an early sign of cancer, such as leukemia or lymphoma.
fatigue
Fatigue is extreme tiredness that does not get better with rest. It may be an important symptom as cancer grows. But it may happen early in some cancers, like leukemia. Some colon or stomach cancers can cause blood loss that's not obvious. This is another way cancer can cause fatigue.
Pain
Pain may be an early symptom with some cancers like bone cancers or testicular cancer. A headache that can not go away or symptom of a brain tumor. Back pain can be a symptom of cancer of the colon, rectum, or ovary. It has already spread (metastasized) from where it started.
Skin changes
Along with skin cancers, some other cancers can cause skin changes that can be seen. These signs and symptoms include:
Darker looking skin (hyperpigmentation)
Yellowish skin and eyes (jaundice)
Reddened skin (erythema)
Itching (pruritis)
Excessive hair growth
Signs and symptoms of certain cancers
Along with the general symptoms, you should watch for certain other common signs and symptoms that could suggest cancer. Again, there may be other causes for you, but it's important to you, especially if there's no other cause you can identify, the problem lasts a long time, or it gets worse over time.
Change in bowel habits or bladder function
Long-term constipation, diarrhea, or change in the size of the stool may be a sign of colon cancer. Pain when passing urine, blood in the urine, or a change in bladder function (such as urine toxin or more often), could be related to bladder or prostate cancer. Report any changes in bladder or bowel function to a doctor.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. This should be dealt with right away, especially in people who smoke, chew tobacco, or often drink alcohol. Sores on the penis or vagina may be signs of infection or an early cancer.
White patches inside the mouth or white spots on the tongue
White patches inside the mouth and white spots on the tongue may be leukoplakia. Leukoplakia is a pre-cancerous area that is caused by frequent irritation. It's often caused by smoking or other tobacco use. People who smoke or use oral or spit tobacco are at high risk for leukoplakia. If it's not treated, leukoplakia can become mouth cancer. Any long-lasting changes should be checked by a doctor or dentist right away.
Unusual bleeding or discharge
Unusual bleeding can occur in early or advanced cancer. Coughing up blood may be a sign of lung cancer. Blood in the stool could be a sign of colon or rectal cancer. Causes of abnormal vaginal bleeding. Cancer of the cervix or the endometrium (lining of the uterus) 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 the breast or other parts of the body
Many cancers can be felt through the skin. These cancers occur mostly in the breast, testicle, lymph nodes (glands), and the soft tissues of the body. It has grown in size. A lump or thickening may be an early or late. I think I'm going to show you that, like a breast or a woman.
Indigestion or trouble swallowing
Indigestion or swallowing problems, stomach, or pharynx (throat). But like most symptoms on this list, they are most often caused by something other than cancer.
Recent change in a wart or mole or any new skin change
Any wart, mole, or freckle that changes color, size, or shape, or that loses its sharp border should be seen by a doctor right away. Any other skin changes should be reported, too. A skin change may be a melanoma which, if found early, can be treated successfully. Our Skin Cancer Image Gallery.
Nagging cough or hoarseness
May be a sign of lung cancer. Hoarseness can be a sign of cancer of the larynx (voice box) or thyroid gland.
Other symptoms
The signs and symptoms listed above are the most common ones seen with cancer, but there are many others that are not listed here. If you notice any major changes in the way your body works or the way you feel - especially if it lasts for a long time or gets worse - let a doctor know. If it has nothing to do with cancer, if needed, treat it. If it is cancer, you'll give yourself the chance to have it treated early.
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