Colon cancer, also known as colorectal cancer, is a type of cancer that affects the colon or rectum. It occurs when abnormal cells in the lining of the colon or rectum grow out of control and form a tumor.
There are several risk factors associated with colon cancer. Age plays a significant role, with the majority of cases occurring in individuals aged 50 and above. A family history of colon cancer or polyps can also increase the risk. Certain genetic syndromes, such as familial adenomatous polyposis (FAP) and hereditary nonpolyposis colorectal cancer (Lynch syndrome), are linked to a higher risk of colon cancer. Lifestyle factors, including a diet high in red and processed meats, lack of regular physical activity, obesity, alcohol, and tobacco use, are additional factors that may contribute to an increased risk of colon cancer. It’s important to note that having one or more risk factors does not necessarily mean you will develop the disease; it merely increases the chances. Regular screening and a healthy lifestyle can help mitigate the risk.
Colon cancer often presents no symptoms in the early stages of the disease, which underscores the importance of regular screening. However, as the disease progresses, certain signs and symptoms may start to appear. These can include changes in bowel habits such as diarrhea, constipation, or narrowing of the stool that lasts for more than a few days; a feeling of needing to have a bowel movement that doesn’t go away even after doing so; rectal bleeding or blood in the stool; persistent abdominal discomfort, such as cramps, gas or pain; a feeling that the bowel doesn’t empty completely; weakness or fatigue; and unexplained weight loss. It’s important to remember that these symptoms can also be caused by conditions other than colon cancer, such as infection, hemorrhoids, or inflammatory bowel disease. Nonetheless, if you experience any of these symptoms, it’s advisable to consult a healthcare provider promptly.
When colon cancer is suspected, the diagnosis process begins with a thorough medical history and physical examination. The healthcare provider may then recommend several tests to confirm the presence of cancer and identify its stage. The most common diagnostic method is a colonoscopy, which involves a long, flexible tube inserted into the rectum to visually inspect the entire colon and rectum for polyps or tumors. Biopsies, or tissue samples, may be taken during this procedure for further analysis.
In addition to a colonoscopy, other tests such as a fecal occult blood test (FOBT), fecal immunochemical test (FIT), or a stool DNA test may be used to detect blood or cancerous genetic material in the stool. Imaging tests, including CT scans or MRI, can also be employed to get a detailed view of the colon and the surrounding organs.
Once a diagnosis is confirmed, the cancer’s stage is determined to guide treatment options. This may involve further imaging tests to see if the cancer has spread to other parts of the body. The stages of colon cancer range from stage I, where the cancer is contained within the colon or rectum, to stage IV, where the cancer has spread (metastasized) to distant organs.
The treatment of colon cancer varies depending on the stage and spread of the disease, the patient’s overall health, and personal preferences. A combination of several treatment approaches is often employed to effectively manage the disease.
It’s crucial to discuss these options with your healthcare provider to understand their potential benefits and risks. Deciding on the best course of treatment involves weighing the goal of treatment, whether it’s to cure the disease, slow its growth, or relieve symptoms, against the potential side effects of the treatment methods.
Preventing colon cancer, or at least significantly reducing the risk of its development, involves making a series of lifestyle changes that promote overall health. Here are some strategies that could help:
Remember, while these strategies can reduce your risk, they can’t guarantee prevention. It’s crucial to have regular check-ups and screenings, especially if you have risk factors for colon cancer.
Genetics play a significant role in the development of colon cancer. Some individuals inherit gene mutations from their parents that significantly increase their likelihood of developing the disease. Hereditary colon cancer syndromes, such as Lynch syndrome (also known as hereditary nonpolyposis colorectal cancer, or HNPCC) and familial adenomatous polyposis (FAP), make up about 5-10% of all cases of colon cancer.
Lynch syndrome is characterized by a higher risk of colon and rectal cancer, often at a younger age than typically expected. Certain other cancers are also more common among people with Lynch syndrome. Familial adenomatous polyposis is less common but is associated with a near 100% risk of colon cancer if not treated.
In addition to these, certain genetic mutations that do not strictly cause cancer but can contribute to its development are common. These are often referred to as low-penetrance or susceptibility genes.
Importantly, having a family history of colon cancer also increases the risk, especially if the relative (parent, sibling, or child) was diagnosed with the disease at a young age or if more than one close relative has the disease. If you have a strong family history of colon cancer or other types of cancer, or if you have questions about your family history, consult your healthcare provider. Genetic testing may be recommended to identify hereditary cancer syndromes.
Remember, even if you do not have an inherited syndrome, this does not mean you will not get colon cancer. Other factors, such as lifestyle choices and environment, also significantly influence the development of this disease.
Being diagnosed with colon cancer can trigger a range of intense emotions – shock, anger, disbelief, anxiety, and sadness, to name a few. It’s important to remember that these feelings are a normal part of the emotional process. Here are some strategies to help cope with these emotions:
Remember, there’s no right or wrong way to cope with a cancer diagnosis. Everyone’s experience is unique, and what works for one person may not work for another. What’s important is to find healthy ways that help you cope and remember, you’re not alone.