Colorectal cancer has traditionally been considered a disease that primarily affects older adults. However, an increasing number of people in their 20s, 30s, and 40s are now being diagnosed with the disease. Such a change has brought into question healthcare professionals, who are exploring the potential causes of the increase in the rate of early onset colorectal cancer.
Although the exact reasons are not yet fully understood, researchers are examining potential links between diet and lifestyle, genetics, environmental factors, gut health, and other risk factors. Understanding why colorectal cancer is increasing in young adults can help improve awareness, recognise warning signs earlier, and encourage timely medical evaluation.
Why Are Colorectal Cancer Rates Increasing?
There is no single proven explanation for the rise in colorectal cancer among young adults. Researchers are investigating the possible roles of lifestyle, diet, genetics, environmental exposures, gut health, and other factors.
1. Changes in Diet and Lifestyle
The current diets are characterized by a higher intake of ultra-processed foods, red meat and processed meat, but inadequate whole grains, fruits and vegetables fibre. A diet with such attributes has been linked to an increased risk in colorectal cancer.
Other factors such as physical inactivity and the growing instances of overweight and obesity are also under investigation. The increased time spent sitting and less time exercising, eating calorie-rich foods can have an effect on metabolic health and inflammation. Nevertheless, none of these associations prove the idea that the increase in cancer among younger adults is caused solely by lifestyle factors.
2. Genetic Factors and Family History
Colorectal cancer can be predisposed by genetic factors, resulting in the development of the disease earlier in life. Other syndromes like Lynch syndrome and familial adenomatous polyposis (FAP) have a higher likelihood of getting colorectal cancer.
The risk of an individual may also be influenced by having a parent, sibling or a child who has colorectal cancer. Nonetheless, the majority of young adults who are diagnosed with colorectal cancer do not always have a genetic disorder inherited. Individuals, who have a strong family history, are to consult their QHC regarding proper screening and genetic evaluation.
3. Delayed Diagnosis and Missed Warning Signs
Although delayed diagnosis does not explain why colorectal cancer is becoming more common among young adults, it can contribute to cancers being detected at a later stage.
Because in the past during the time of routine screening, the age group was mainly concerned with older stages of life, younger adults may not be screened except when they have symptoms or other risk factors. Consequently, a few of the cases are diagnosed when the disease is advanced. Continuing symptoms thus ought to undergo proper medical examination, irrespective of age.
Colorectal Cancer Symptoms
Symptoms of the colorectal cancer may differ with the location of the tumour and the stage at which the tumour has developed. A proportion of individuals are affected by evident alterations in their digestive well-being whereas just a number of individuals suffer no or minimal signs of the initial stages.
Common warning signs include:
- Persistent constipation or diarrhoea.
- Blood in the stool or rectal bleeding.
- Abdominal pain, cramping or ongoing bloating.
- Unexplained weight loss.
- Fatigue or iron-deficiency anaemia.
- Changes in stool shape or bowel habits.
These symptoms do not automatically indicate cancer, as they can occur with several other health conditions. However, recurring or unexplained symptoms should be assessed by a healthcare professional.
Colorectal Cancer Symptoms in Females
The symptoms of colorectal cancer in women tend to be the same as in men. Women might develop rectal bleeding, stomach pain, bowel movement changes, unexplainable weight loss or constant tiredness.
The iron-deficiency anaemia due to slow iron bleeding may be sometimes related to fatigue. Due to the possibility of confusion between menstrual blood loss and symptoms, digestive diseases and other common infections, women must not disregard constant or peculiar alterations. According to the symptoms, as well as the individual risk factors, a doctor will be able to suggest relevant tests.
Colorectal Cancer Causes: What Researchers Know
The precise genesis of the rise of early-onset colorectal cancer is a subject of research. Scientists are investigating how nutrition, weight gain, sedentary lifestyle, intestinal microbes, inflammation and environmental stress could be involved in the trend.
Risk factors are known to be family history, inherited genetic syndromes as well as inflammatory bowel diseases such as Crohn diseases and ulcerative colitis. However, there is also colorectal cancer that may also happen in individuals that do not have a risk factor that could be established.
Understanding the possible causes and risk factors of colorectal cancer is important, but timely treatment is equally essential after diagnosis. Dr. Aditi Bhatt, a surgical oncologist in Ahmedabad, provides personalised guidance on colorectal cancer treatment based on each patient’s condition, cancer stage, and treatment needs.
Colorectal Cancer Treatment in Ahmedabad
Colorectal cancer treatment in Ahmedabad is planned according to the cancer stage, tumour location, overall health, and whether the disease has spread to other parts of the body.
Treatment may include surgery, chemotherapy, radiation therapy, targeted therapy, immunotherapy, or specialised procedures such as cytoreductive surgery and HIPEC for selected patients with peritoneal spread.
Dr. Aditi Bhatt is a surgical oncologist in Ahmedabad with expertise in colorectal cancer, peritoneal malignancies, cytoreductive surgery, and HIPEC. Her published profile notes experience in managing colorectal cancer with peritoneal spread and in performing cytoreductive surgery and HIPEC.
For patients seeking colorectal cancer treatment in Ahmedabad, consultation with an experienced surgical oncologist can help determine the most appropriate treatment approach based on the individual diagnosis and disease stage.
Conclusion
Colorectal cancer is no longer a concern limited to older adults. While researchers continue to study why cases are increasing among younger people, paying attention to persistent symptoms and seeking timely medical advice remains important. Early evaluation can make a difference in understanding the condition and exploring suitable treatment options.
If you have ongoing digestive symptoms or concerns about your colorectal health, consider speaking with Dr. Aditi Bhatt in Ahmedabad for a personalised medical evaluation and guidance.