7 Early Warning Signs of Colon Cancer to Be Mindful Of

Cases of colon and rectal cancer have been on the rise in young adults for a while now and the median age of patients diagnosed with the disease appears to be getting lower. Many might not be aware that colon and rectal cancer, known as colorectal cancers collectively, might be more common than you think. They are the third most common type of cancer in men and women and it is estimated that nearly 50,000 deaths per year are caused by colorectal cancer. 

 

According to a report by the American Cancer Society, colorectal cancer cases among those under 50 have been increasing since the 1990s. Experts suggest regular screening for colon and rectal cancer from age 45. For better safety, however, it is important to be aware of the signs and symptoms of colorectal cancer. The symptoms of this cancer depend on its location, how advanced it is, and how it impacts the organs and tissues.

It is important to note that one sign or symptom may not be enough to determine the cause. Also, the symptoms of colorectal cancer, at times, may not show up until cancer has advanced. However, there are a few common symptoms of the disease which, if detected early, can help avoid a late-stage cancer diagnosis. 

 

Many of these symptoms can be overlooked, but they may be a sign of the dangerous disease. Hence, understanding the symptoms properly and regular examinations with a doctor are essential. Let’s now take a look at the signs and symptoms of colon cancer you shouldn’t ignore.

1. Abdominal discomfort

 Many people experience abdominal pain at some point in their lives. Like many other symptoms, it can often be mild and can be caused by a number of conditions, including diet-related gastrointestinal distress. However, if the abdominal discomfort and cramps began recently and are persistent, then it might be a warning sign. 

 

Since colon cancer occurs in the large intestine, it can affect your bowel habits and cause you to feel discomfort in your abdominal region. Many colon cancer patients experience these symptoms that are generally brought upon after eating something. 

 

Thus, cramping, bloating and abdominal pain could be an indicator of colon cancer. 

 

2. Unexplained weight loss

Unexplained and sudden weight loss can be a sign of various types of cancer, including colon cancer. If you have lost 10 pounds (4.5 kg) or more in six months or less without knowing the reason, then that can be categorized as unintentional and unexpected weight loss. Colon cancer can lead to unexplained weight loss in a variety of ways.

Cancer cells consume a lot of the body’s energy supply. Our immune system uses energy to try to fight the disease. Furthermore, cancer cells can discharge substances into the body that alter the way food is converted to energy. This can consequently lead to steady weight loss. 

 

Also, if a tumor in the colon gets large enough, it could block the colon. This blockage could interfere with digestion and also impact a person’s bowel habits, leading to a decrease in food intake and unexplained weight loss. 

3. Fatigue and weakness

Fatigue or weakness can be easily confused with being tired. All of us feel exhausted and weary at times and that’s okay. However, if the exhaustion does not go away with rest, it could be fatigue and a sign of colorectal cancer, especially if it coexists with other symptoms. In fact, doctors say that cancer-related fatigue is one of the most common side effects of colorectal cancer. 

 

Similar to unexplained weight loss, cancer cells can cause fatigue as well by using up the body’s energy. Colon cancer can also cause internal bleeding in the colon, which can eventually lead to fatigue and weakness. 

 

Usually, the fatigue and weariness come on suddenly and are not predictable by tumor type, treatment, or stage of illness. Hence, if you notice sudden weakness or fatigue that is not relieved by rest or sleep it would be a good idea to consult a doctor.

4. Blood in stool

If you notice blood in your stool, then that could be a warning sign for colon or rectal cancer. Sometimes you may notice bright red spots, and on other occasions, your stool might have marks that are invisible to the naked eye. In many cases, stool could also appear very dark or black, indicating the presence of dried blood.

According to the American Cancer Society (ACS), "Colorectal cancers can often bleed into the digestive tract. Sometimes the blood can be seen in the stool or make it look darker, but often the stool looks normal." 

 

If you notice these symptoms, then it would be best to first get a blood test done that can disclose a low red blood cell count in the early stages of the cancer's development. Additional examinations can then help your doctor determine the source of the blood and the future course of action. 

 

5. Change in stool consistency

Colon cancer can also impede the large intestine’s ability to perform its usual functions, like clearing the body of waste and absorbing water and nutrients. Patients usually notice significant changes in their stool, including darkened color, mellowed consistency, or a more "narrow" shape. If you observe these drastic changes in your stool consistency, then it might be an indication that something isn’t quite right. 

 

Furthermore, loose, watery stools, diarrhea, or constipation that is not connected to any other prevalent condition, could be a symptom of colon cancer, too. 

 

6. Bowel doesn't empty completely

Have you ever had the feeling that your bowels don’t feel completely empty even though there is nothing left to expel? Many patients describe this feeling as though their bowels aren't relieved even by actually going. Moreover, it takes longer for them to go. This condition is generally known as rectal tenesmus, or tenesmus, and can be caused by a variety of factors, including colorectal cancer. Tenesmus can hence be a sign of a blockage due to a cancerous tumor. 

 

Tenesmus can be painful if you already have other digestive symptoms. The symptoms can come and go but if you are having them regularly, it's especially important to get yourself properly examined. 

 

 7. A consistent change in bowel habits

A colon polyp is a small clump of cells that forms on the lining of the colon or rectum. This polyp can develop into cancer over time and once it does, the slow growth of the tumor can affect bowel habits. Thus, if you noticed a marked change in the frequency of your bowel movements or your stool becoming thinner, it could be a sign of colon cancer. 

 

 "Constipation or diarrhea that lasts longer than a week may indicate the presence of a large colon polyp," according to the Mayo Clinic.

 

 

This is only for your information, kindly take the advice of your doctor for medicines, exercises and so on.   

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Understanding Polycythemia Vera

Polycythemia vera (PV) is a rare blood disorder that affects approximately 2-3 people per 100,000 individuals worldwide. Despite its rarity, understanding this condition is crucial for those diagnosed with it and their families. This comprehensive guide will walk you through what polycythemia vera is, its causes, symptoms, treatment options, and what the future holds for patients living with this condition.

What is Polycythemia Vera? 

Polycythemia vera is a type of blood cancer classified as a myeloproliferative neoplasm (MPN). The name literally means "many blood cells that are true" – and that's exactly what happens in this condition. Your bone marrow, which is responsible for producing blood cells, goes into overdrive and creates too many red blood cells, and often too many white blood cells and platelets as well.

Think of your bone marrow as a factory that's supposed to produce a balanced number of different blood cell types. In polycythemia vera, the factory's controls malfunction, and it starts overproducing, particularly red blood cells. This overproduction makes your blood thicker than normal, similar to how adding too much flour to cake batter makes it harder to mix and pour. 

 

This thickened blood can cause serious complications because it doesn't flow through your blood vessels as easily as normal blood. It's like trying to push honey through a straw instead of water – everything slows down, and blockages can occur. 

 

What Causes Polycythemia Vera? 

The vast majority of polycythemia vera cases – about 95% – are caused by a specific genetic mutation called JAK2 V617F. This mutation occurs in a gene that normally helps control blood cell production. When this gene mutates, it sends constant "go" signals to blood-producing cells, telling them to keep making more cells even when the body doesn't need them.

 

It's important to understand that this mutation is acquired, not inherited. This means you don't get it from your parents, and you won't pass it on to your children. The mutation typically develops later in life, which is why polycythemia vera most commonly affects people over 60, though it can occur in younger adults. 

 

Scientists don't yet fully understand what triggers this mutation to occur. It appears to be a random cellular event rather than something caused by lifestyle factors, environmental exposures, or other controllable circumstances. This can be both frustrating and reassuring for patients – frustrating because there's nothing they could have done to prevent it, but reassuring because it's not something they caused. 

 

Recognizing the Symptoms

Polycythemia vera symptoms develop gradually and can be subtle at first, which is why the condition is sometimes discovered during routine blood tests before symptoms become noticeable. The symptoms are primarily related to having too many blood cells and blood that's thicker than normal. 

 

Fatigue and weakness are among the most common early symptoms. Paradoxically, even though you have more red blood cells (which carry oxygen), you may feel tired because the thickened blood doesn't circulate efficiently. 

 

Headaches and dizziness occur because the brain isn't receiving optimal blood flow. Some patients describe feeling like they're in a fog or having difficulty concentrating. 

 

Itching, especially after warm baths or showers, affects about 40% of patients. This happens because the excess blood cells release chemicals that irritate nerve endings in the skin.

Vision problems can include blurred vision, blind spots, or seeing flashing lights. These occur when small blood vessels in the eyes become blocked or damaged.

High blood pressure develops because the heart has to work harder to pump the thickened blood through the circulatory system. 

 

Enlarged spleen (splenomegaly) happens in about 70% of patients. You might feel fullness or pain in the upper left side of your abdomen, or feel full quickly when eating. 

 

Blood clots are one of the most serious complications, occurring in about 20-30% of patients at diagnosis. These can happen anywhere in the body but commonly affect legs (deep vein thrombosis), lungs (pulmonary embolism), or brain (stroke). 

 

Some patients also experience unusual symptoms like burning pain in hands and feet, night sweats, unexplained weight loss, or frequent infections. 

 

Diagnosing Polycythemia Vera 

 

Diagnosis typically begins with blood tests that show elevated levels of red blood cells, measured by hematocrit (the percentage of blood volume made up of red blood cells) and hemoglobin levels. However, high red blood cell counts can have other causes, so additional testing is needed. 

 

The key diagnostic test is checking for the JAK2 mutation through genetic testing. Finding this mutation, combined with elevated blood counts and other clinical criteria, confirms the diagnosis in most cases. 

 

Additional tests might include bone marrow biopsy, which shows increased cell production, and measurements of erythropoietin (EPO), a hormone that stimulates red blood cell production. In polycythemia vera, EPO levels are typically low because the body is trying to slow down red blood cell production. 

 

 

Treatment Options: Benefits and Drawbacks

Treatment for polycythemia vera aims to reduce the risk of blood clots and manage symptoms while maintaining quality of life. The approach is typically tailored to individual risk factors, age, and overall health. 

 

Phlebotomy (Blood Removal) 

 

 

How it works: Regular removal of blood, similar to blood donation, reduces the number of red blood cells and decreases blood thickness. During the procedure, typically 450-500ml of blood (about one pint) is removed through a needle in your arm, just like donating blood. This immediately reduces your hematocrit level (the percentage of red blood cells in your blood). Your body responds by using iron stores to make new red blood cells, but since you have polycythemia vera, it takes time for the excess cells to build up again. The goal is to keep your hematocrit below 45% for men and 42% for women, which significantly reduces the risk of blood clots while maintaining enough red blood cells for normal oxygen delivery.

Advantages:  

 

Simple, safe procedure with immediate results No medication side effects 

 

Effective at quickly reducing hematocrit levels 

 

Can be done at most medical facilities 

 

Disadvantages: 

 

Requires frequent visits (initially weekly, then monthly or less frequent) 

 

Can cause iron deficiency over time 

 

May not address elevated white blood cells or platelets 

 

Some patients find the process tiring or inconvenient 

 

Low-Dose Aspirin 

 

How it works: Reduces the risk of blood clots by making platelets less sticky. Aspirin permanently blocks an enzyme called cyclooxygenase-1 (COX-1) in platelets, which prevents them from producing thromboxane A2, a chemical that normally makes platelets clump together. Since polycythemia vera patients often have elevated platelet counts and overactive platelets, this "anti-sticky" effect is particularly beneficial. The dose used (typically 81-100mg daily, much lower than pain-relief doses) is enough to block platelet function without completely preventing normal blood clotting. Each platelet remains affected for its entire 7-10 day lifespan, which is why the effect persists even with once-daily dosing.

Advantages: 

Inexpensive and widely available 

 

Significantly reduces risk of heart attack and stroke 

 

Easy to take (one tablet daily) 

 

Well-studied with proven benefits 

 

Disadvantages: 

Increases bleeding risk, especially stomach bleeding 

 

May not be suitable for patients with bleeding disorders 

 

Requires monitoring for side effects 

 

Not effective for managing high blood cell counts 

 

Hydroxyurea 

 

How it works: A chemotherapy medication that slows down bone marrow production of blood cells. Hydroxyurea interferes with DNA synthesis during cell division by inhibiting an enzyme called ribonucleotide reductase, which is essential for making the building blocks of DNA. When cells in the bone marrow try to divide and create new blood cells, they can't complete the process properly, so fewer cells are produced. This affects all types of blood cells, but the impact is most noticeable on the rapidly dividing cells that produce red blood cells, white blood cells, and platelets. The medication is taken orally, usually once daily, and the dose is adjusted based on blood counts to find the right balance between controlling the disease and maintaining adequate blood cell levels.

Advantages:  

Effective at controlling all blood cell counts 

 

Reduces spleen size 

 

May reduce itching and other symptoms 

 

Reduces risk of blood clots 

 

Oral medication taken at home 

 

Disadvantages:  

Potential long-term cancer risk (though this is debated) 

 

Can cause mouth sores, skin changes, or hair thinning 

 

Requires regular blood monitoring 

 

May cause fatigue or nausea in some patients 

 

Not suitable during pregnancy 

 

Interferon Alpha 

 

How it works: A naturally occurring protein that helps regulate immune system and blood cell production. Interferon alpha is a cytokine (cell signaling protein) that your body normally produces in small amounts to fight infections and regulate cell growth. When given as medication, it works through multiple mechanisms: it directly inhibits the growth of abnormal blood cell-producing cells in the bone marrow, enhances the immune system's ability to recognize and eliminate abnormal cells, and may help restore more normal cell production patterns. Interferon also appears to specifically target cells carrying the JAK2 mutation, potentially reducing the burden of mutated cells over time. The medication is given by injection under the skin, with newer pegylated forms requiring less frequent dosing (weekly or every two weeks) because they remain active in the body longer.

Advantages:  

May provide deeper disease control 

 

Suitable for younger patients concerned about long-term cancer risk 

 

Can be used during pregnancy 

 

May reduce the JAK2 mutation burden in some patients 

 

Disadvantages: 

Requires injection (though newer forms are less frequent) 

 

Flu-like side effects, especially initially 

 

Can cause depression or mood changes 

 

More expensive than other options 

 

Fatigue and muscle aches are common 

 

 

JAK2 Inhibitors (Ruxolitinib) 

 

How it works: Specifically targets the JAK2 pathway that's overactive in polycythemia vera. The JAK2 protein normally acts like a molecular switch that turns on blood cell production when the body needs it. In polycythemia vera, the mutated JAK2 protein is stuck in the "on" position, constantly signaling for more blood cell production. Ruxolitinib is designed to fit precisely into the JAK2 protein and block its activity, essentially turning down the overactive switch. This helps restore more normal blood cell production levels. The drug also blocks related proteins (JAK1), which helps reduce inflammation and may shrink an enlarged spleen. Unlike chemotherapy drugs that broadly slow down cell division, JAK2 inhibitors are more targeted, specifically addressing the root molecular problem in polycythemia vera. The medication is taken orally twice daily, and the dose can be adjusted based on response and side effects.

Advantages: 

Directly targets the underlying molecular problem 

 

Effective at reducing spleen size and controlling symptoms 

 

May improve quality of life significantly 

 

Generally well-tolerated 

 

Disadvantages:  

 Very expensive 

 

Can increase infection risk 

 

May cause anemia or low platelet counts 

 

Relatively new, so long-term effects unknown 

 

Typically reserved for patients who don't respond to other treatments 

 

Living with Polycythemia Vera: 

 

Prognosis and Outlook  

The prognosis for polycythemia vera has improved significantly over the past few decades with better understanding and treatment of the condition. With proper management, many patients live normal or near-normal lifespans. 

 

Life expectancy varies depending on age at diagnosis, overall health, and how well the condition responds to treatment. Studies suggest that patients diagnosed in their 60s might have a life expectancy 10-20 years shorter than average, but many patients live well into their 80s and beyond. Younger patients at diagnosis generally have better long-term outcomes. 

 

Quality of life can be maintained with proper treatment. While some patients experience ongoing fatigue or other symptoms, many are able to continue working, traveling, and enjoying their usual activities. 

 

Potential complications to be aware of include progression to more serious blood cancers (acute leukemia in 2-5% of patients, or myelofibrosis in 10-15% of patients), but these transformations typically occur many years after diagnosis and may be related to treatment choices. 

 

Regular monitoring is essential and typically includes blood tests every 3-6 months, annual physical exams, and periodic imaging studies to check spleen size. Most patients develop a routine with their healthcare team that becomes manageable over time.

Current Research and Future Directions  

Research into polycythemia vera is active and promising. Scientists are investigating new JAK inhibitors that might be more effective or have fewer side effects. Gene therapy approaches are being explored, though these remain experimental. 

 

Researchers are also studying combination therapies that might provide better disease control, and investigating ways to predict which patients might benefit most from specific treatments. 

 

Understanding of the molecular biology of polycythemia vera continues to evolve, which may lead to more targeted and personalized treatment approaches in the future.

Conclusion 

While receiving a diagnosis of polycythemia vera can be overwhelming, it's important to remember that this is a manageable condition for most patients. With proper treatment and monitoring, many people with PV continue to live full, active lives. 

 

The key is working closely with a hematologist who specializes in blood disorders to develop a treatment plan that's right for your specific situation. Treatment is highly individualized, and what works best can vary from person to person. 

 

Stay informed about your condition, but also remember that medical research is constantly evolving. What we know about polycythemia vera today is far more than we knew even a decade ago, and the outlook for patients continues to improve. 

 

If you've been diagnosed with polycythemia vera, consider connecting with patient support groups or organizations like the MPN Research Foundation, which can provide additional resources and connect you with others who understand what you're experiencing.

This is only for your information, kindly take the advice of your doctor for medicines, exercises and so on.   

https://gscrochetdesigns.blogspot.com. one can see my crochet creations  
https://gseasyrecipes.blogspot.com. feel free to view for easy, simple and healthy recipes    
https://kneereplacement-stickclub.blogspot.com. for info on knee replacement
https://GSiyers home remedies.blogspot.com   is the latest addition to my blogs