symptoms of cancer - Cancer Science

What are the common symptoms of cancer?

Cancer symptoms can vary widely depending on the type and stage of the disease. Common symptoms include unexplained weight loss, fatigue, pain, skin changes, and persistent cough or hoarseness. It is important to note that these symptoms can also be caused by conditions other than cancer.

How does cancer cause unexplained weight loss?

Unexplained weight loss of 10 pounds or more may be one of the first signs of cancer, particularly cancers of the pancreas, stomach, esophagus, or lung. This weight loss can occur because cancer cells take up a lot of the body's energy supply or because the body uses energy differently as it fights the disease.

Why does cancer cause fatigue?

Cancer-related fatigue is more severe than the typical tiredness people experience. It is often not relieved by rest or sleep. This fatigue can result from the cancer itself, the cancer treatment, or the body's effort to fight the disease. Cancers that cause chronic blood loss, like colon or stomach cancer, can also lead to fatigue due to anemia.

What types of pain are associated with cancer?

Pain from cancer can be acute or chronic. It may result from the tumor pressing on bones, nerves, or other organs. Pain can also be a side effect of cancer treatments. Bone pain is often associated with cancers that have spread to the bone, such as breast, prostate, and lung cancer.

How can skin changes indicate cancer?

Skin changes that may suggest cancer include darkening of the skin (hyperpigmentation), yellowing of the skin and eyes (jaundice), reddened skin (erythema), itching, or excessive hair growth. Additionally, skin cancer itself, such as melanoma, can present as new growths, sores that do not heal, or changes in existing moles.

Can a persistent cough or hoarseness be a sign of cancer?

Yes, a persistent cough or hoarseness can be a symptom of cancers such as lung cancer, throat cancer, or thyroid cancer. If a cough lasts for more than three weeks, especially if accompanied by blood, it is essential to seek medical advice.

Are there specific symptoms associated with particular types of cancer?

Yes, different types of cancer can have specific symptoms. For example:
- Breast cancer: A lump in the breast, changes in breast shape, dimpling of the skin, or nipple discharge.
- Prostate cancer: Difficulty urinating, blood in the urine, and pelvic discomfort.
- Colorectal cancer: Blood in the stool, persistent abdominal discomfort, and a change in bowel habits.
- Ovarian cancer: Abdominal bloating, pelvic pain, and changes in bowel habits.
- Leukemia: Frequent infections, unexplained fevers, and easy bruising or bleeding.

When should you see a doctor?

It is crucial to consult a healthcare provider if you experience any persistent symptoms that are unusual for you. Early detection of cancer can significantly improve the chances of successful treatment. If you have a family history of cancer or other risk factors, regular screenings and check-ups are advisable.

Can cancer symptoms be non-specific?

Yes, many cancer symptoms are non-specific and can be easily attributed to other conditions. This non-specificity can sometimes lead to delayed diagnosis. Symptoms like fatigue, weight loss, and pain are common to many diseases, so it's essential to consider the context and persistency of these symptoms.

What should you do if you recognize potential cancer symptoms?

If you identify potential cancer symptoms, schedule an appointment with your healthcare provider for a thorough evaluation. Be honest and detailed about your symptoms, family history, and lifestyle choices. Early intervention can lead to better outcomes.



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