What are the early symptoms of colorectal cancer

As a type of cancer, colorectal cancer has been mentioned more and more in our lives, but people still have some misunderstandings about colorectal cancer and lack a certain understanding. Some people just think that blood in the stool is a colorectal cancer disease, but in fact, hemorrhoids can also cause blood in the stool. In life, people often miss the best time for treatment due to negligence. The following will introduce to you in detail the early symptoms of colorectal cancer.

What are the early symptoms of colorectal cancer?

1. Right colon cancer

The main symptoms are indigestion, fatigue, loss of appetite, diarrhea, constipation, or alternating constipation and diarrhea, abdominal distension, abdominal pain, abdominal tenderness, abdominal mass, and progressive anemia. The location of the mass varies with the location of the lesion. The mass of cecal cancer is located in the right lower abdomen, the mass of the ascending colon is located in the right abdomen, the mass of the hepatic flexure of the colon is located in the right upper abdomen, and the mass of the transverse colon is located near the umbilicus. In addition, there may be fever, weight loss, and complications such as perforation and localized abscess. At this time, the lesion has entered the most advanced stage.

2. Left-sided colon cancer

Since the sigmoid colon has a narrow intestinal cavity and forms an acute angle with the rectum, it is prone to stenosis and progressive intestinal obstruction, often with stubborn constipation and occasional increased bowel movements. Since the obstruction is mostly in the lower part of the sigmoid colon, vomiting is mild or absent, while abdominal distension, abdominal pain, bowel sounds and intestinal patterns are obvious. When the tumor ruptures, the stool may be stained with blood or mucus. The proximal intestinal tract of the obstruction may form ulcers due to persistent expansion, ischemia and hypoxia, and may even cause perforation. Large amounts of blood and abdominal abscesses may also occur.

3. Rectal cancer

The main symptoms are increased frequency of bowel movements, thinner stools, blood or mucus, and tenesmus. Severe pain may occur because the cancer may invade the sacral plexus. If the bladder is involved, symptoms such as frequent urination, painful urination, urgent urination, and hematuria may occur. Cancer invasion of the bladder may form a bladder-rectal fistula. Rectal cancer can also cause intestinal obstruction.

4. Anal canal cancer

The main symptoms are blood in the stool and pain. The pain worsens during defecation. When the cancer invades the anal sphincter, there may be fecal incontinence. Anal canal cancer can metastasize to the inguinal lymph nodes, so enlarged and hard lymph nodes can be felt in the groin.

Through the above introduction, everyone has a deep understanding of colorectal cancer. I hope everyone can remember the above introduction. Pay attention to your body. When there are signs of this in the body, for the sake of your own health, I hope everyone can take precautions as soon as possible to ensure their own health. I hope it can be helpful to everyone.