Colon cancer is believed to be one of the common types of cancer affecting people. As the name suggests, here, the point of origin of the cancer is the colon or the large intestine. Though colon cancer can affect anyone, people with unhealthy lifestyle (sedentary) and habits (excess smoking and consumption of alcohol), obesity, certain medical conditions like diabetes, or exposed to radiations (radiation therapy) are at a greater risk of colon cancer. Colon cancer may also be hereditary.

Colon cancer usually proceeds through five stages, stage 0 (zero), stage I, II, III and IV.

In stage 0, cancer remains in situ, (it remains confined within the innermost layer of the colon).
In stage I, cancer slowly starts spreading to the other layers (second and third) of the inner walls of the colon.
In stage II, cancer spreads further to the muscular walls of the colon (the lymph nodes, are, however, still not affected by this condition).
In stage III, cancer spreads outside the colon, affecting one or more lymph nodes.
Stage IV is more severe and metastatic. Here cancer has spread to and affected vital organs like the liver and the lungs.
Many of the symptoms do not appear at the initial stages. As a result, colon cancer mostly gets detected at a later (often metastatic) stage. Thus, a person should be alert. The initial symptoms, no matter how trivial, should be taken seriously. There is no harm in seeking medical help. It will only help you in the long run. 

The following symptoms are often the initial or first signs of something as big as colon cancer.

Unexplained poor appetite followed by sudden and rapid weight loss. Losing weight at an alarming rate without sweating it out needs thorough investigation. More than often, colon cancer interferes with the digestion process in a person. A person is not able to eat well. There is a feeling of being full (irrespective of how much you eat) all the time.
Constipation, gas or (and) diarrhea. Often overlooked and mistaken for common bowel disorder, these are some of the initial symptoms of colon cancer. The symptoms may be an outcome of polyps (abnormal tissue growths that can take place in any organs. These polyps are mostly benign in nature) or malignant tumors in the colon. Seek medical help if the conditions persist for more than a week. It is better to be safe than to be sorry.
A person feels exhausted, sleepy and weak all the time. The symptom may be an outcome of iron deficiency and anemia. Colon cancer can cause injury to the digestive tract. There may be bleeding followed by blood loss and hence the associated symptoms.
Mild to severe abdominal pain. The abdomen also appears tender than usual (in the case of metastatic tumor).
Stomach upset accompanied by pain, nausea, vomiting, cramps and at times, indigestion (an outcome of intestinal obstruction and inflammation).
There may be blood while passing stool.

Colon Cancer - What Signs You Must Watch Out For?

If you notice blood in the stool or the toilet bowl, it could be a case of rectal bleeding. There are many reasons why rectal bleeding can occur, the most common one being haemorrhoids. If the rectal bleeding is not significant then it is not a cause for concern. But if you lose a lot of blood then it can be a major problem.

What are the signs?

The most obvious one, in this case, is the presence of blood in your stool. But it's not just the presence of blood that is important here, the colour of the blood is also a very important indicator of what is wrong.

Black colour indicates that you are bleeding from the upper region of the small intestine

A bright red colour is an indication of the blood loss from the lower part of the gastrointestinal tract   rectum or colon

Dark red indicates that the bleeding is taking place at the initial region of the colon

Some other symptoms you may experience are  

Confusion

Pain in the rectum

Stomach cramps

A sensation of dizziness

Causes of rectal bleeding

Causes of rectal bleeding can be divided into mild and serious. 

Mild causes  

Constipation 

Small tears in the anal lining (anal fissures)

Haemorrhoids

Small growths of tissue in the rectum or colon

Serious causes  

Cancer of the colon and anus

Inflammatory bowel disease

An infection of the intestine such as salmonella

How is it treated?

If you lose a lot of blood, then it is a medical emergency. You should rush to the doctor if you experience the following   fainting, intense pain in the stomach, confusion, and rapid breathing.

The doctor will prescribe treatment based on the cause of your rectal bleeding. For example, if the cause is haemorrhoids then warm baths will help soothe the pain. If the haemorrhoids are large then invasive methods such as laser treatments and surgery are prescribed. 

Or if it is constipation then stool softeners are a good option. In addition, you may have to eat a high fibre diet and exercise regularly to normalize your bowel movements. 

Rectal bleeding can be a minor inconvenience or a major problem depending on the cause. So it is best to consult a doctor and seek immediate treatment.

Rectum Bleeding - How To Administer It?

A Gastroenterologist is a physician with dedicated training and unique experience in the management of diseases of the gastrointestinal tract and liver. If you are planning to visit one, you most likely have a problem in one or many organs like esophagus, stomach, small intestine, colon and rectum, pancreas, gallbladder, bile ducts and liver. 

Visit your doctor to understand the severity of your condition and the course of treatment, as it is obvious that during this time you must be suffering from anxiety and you may not ask the questions arising in your mind. That is why you need to prepare in advance for your first visit with a gastroenterologist. Being an active partner in the doctor patient relationship is bound to have its benefits. Here are some handy tips:

1. Come mentally prepared: Don't let the anxiety get to you. If you need some extra help calming down, try yoga or meditation. You can simply go out on a walk alone to help you focus your thoughts. This is just like any other doctor visit. The good part is that you are taking the first step in easing your discomfort and starting treatment, so go with a positive mind.

2. Maintain a diary of symptoms: It is likely that you are experiencing discomfort from past few days or weeks before you finally realize the need to seek out a specialist. Try to remember as much as possible about the symptoms you experienced in a chronological order. Write down any over the counter medicines you've tried or anything unusual that you may have consumed in the past week. 

3. Take stock of your medical history: It is likely that your doctor may want to know about any historic conditions you've suffered that may or may not relate to your present condition. Many ask you to fill out forms during your first time patient registration which includes many minor details about your medical past. List down any allergies, especially food allergies you have. 

4. Take stock of your recent medical tests: Bring your latest blood tests and imaging tests (X-rays, ultrasounds, MRIs, and CT scans) with you for the doctor's visit. If you have a pre-existing condition like diabetes, thyroid or you suffer from other chronic conditions like increased uric acid, carry your most recent medical reports with you. 

5. Make a list of questions for the doctor: In most cases, the first visit is a crucial factor in determining whether you want to continue the course of treatment with a particular doctor. This comes out of your ability to trust the doctor, his knowledge and diagnosis and an overall comfort level that comes with how well he handles your questions. Start by making a list of questions you want to ask about your specific condition and course of treatment and see if you get satisfactory answers. 

6. Brace yourself: If you want to suggest a treatment option, make sure you read up all about it before you tell the doctor.

6 Tips For Your First Visit With A Gastroenterologist

Colorectal surgery is the broad term for surgical procedures performed on the colon, the rectum and the anus. There are various different surgical procedures which fall under colorectal surgery and these are used to treat a vast array of disorders, such as:
1. Anal cancer
2. Colorectal cancer
3. Severe complications related to constipation
4. Anal injuries
5. Inflammatory conditions of the gastrointestinal tract
6. Congenital defects

Procedures
The surgeries under colorectal surgery are performed after diagnostic tests such as proctoscopy, sigmoidoscopy and defecating proctography. The most common diagnostic test is colonoscopy. These help to identify the origin and nature of the problem and decide which surgical procedure is to be followed. The procedures under colorectal surgery are as follows:

Colectomy
This procedure involves removal of a section of the large intestine. This is known as partial colectomy. In extreme cases, such as advanced cancer or severe gastrointestinal infection, the entire colon is removed and this is called total colectomy. Sometimes, the rectum is also taken out along with the colon and this is called proctocolectomy.

Colonic polypectomy
An abnormal growth of tissues in the inner lining of an organ is known as a polyp. Colonic polypectomy is done to eliminate polyps from the colon and rectum before they become malignant. This can be done endoscopically. Surgery is required in case of large polyps.

Strictureplasty
Chronic or repeated bowel inflammation causes scar tissue to accumulate in the large intestine. This results in the narrowing of the colon. Stricturoplasty removes the scar tissue so that proper flow of digestive contents is resumed.

Colostomy or ileostomy
A damaged section of the colon is removed and the shortened intestine is then attached to another opening (stoma) in the anterior wall of the abdomen.

Hemorrhoidectomy
This surgical process is used for swollen hemorrhoids or blood vessels, which form in the anal canal. Hemorrhoidectomy is extremely effective in removing hemorrhoids, but the surgery also involves a number of complications.

Anoplasty
Anoplasty or imperforate anus correction is done to correct birth defects in the rectum and the anus. The structural flaw does not allow the stool to pass properly from the rectum and so it is repaired through surgery.

All About Colorectal Surgery

Renal Tubular Acidosis is a medical condition. When the kidney is unable to acidify urine, it leads to the accumulation of acid in the body. Usually, when blood is filtered by the kidney, it passes through the tubules of the nephrons (the functional unit of the kidney).

Before it flows into the bladder from the kidney, the urine undergoes an exchange of salts, acids and other solutes. Renal tubular acidosis results in the formation of excessive amounts of acid because the kidneys cannot drain them. This may happen because the kidneys cannot reabsorb the alkaline bicarbonate ions from the urine in the early segment of the nephron or because of inadequate production of acidic hydrogen ions in the latter half of the nephron.

Renal Tubular Acidosis is simply associated with abnormal urinary acidification. Other functions of the kidneys remain unimpaired.
There are several different types of renal tubular acidosis-

  Distal Renal Tubular Acidosis (RTA)
This is the most fundamental form of RTA. It is characterized when the hydrogen ions are not secreted into the lumen of the nephron by the alpha-intercalated cells of the medullary collective duct of the distal nephron. When this happens the pH of urine cannot be brought down below 5.3. Renal excretion is inhibited and hydrogen ions are not eliminated which leads to academia. At the same time, Potassium ions cannot be absorbed by the cell which leads to hypokalemia. The end result is protein retention and potassium excretion. Distal RTA can lead to the urinary stone formation, calcium deposits in the kidney, rickets and osteomalacia and Sjogren s syndrome.

  Proximal RTA
When proximal tubular cells reabsorb 85% of filtered bicarbonates and 60% of filtered sodium from the urine, then this again leads to academia. The distal intercalated cells, however, function normally and so the academia is not as severe as in case of Distal RTA. The alpha-intercalated cells can acidify urine to a pH of 5.3 or less because they produce hydrogen ions. Proximal RTA is also associated with Fanconi Syndrome which is characterized by aminoaciduria, uricosuria, glucosuria, and tubular proteinuria.

  Combined distal and proximal RTA
Inherited carbonic anhydrase II deficit leads to combined distal and proximal RTA. This is accompanied by osteopetrosis, cerebral calcification, and renal tubular acidosis. Cases of combined distal and proximal RTA are very rare.

How is RTA understood?
The following steps are applied to analyze Renal Tubular Acidosis-
  Determining the anion gap in acidosis. The normal Anion Gap is 8-12 (4-6 mEq/L)
  Separating the renal from the extrarenal causes of normal anion gap acidosis
  Classifying the types of RTA
  If it is distal RTA, further tests will be necessary to support the diagnosis

How is RTA diagnosed?
Three types of tests can reveal if a person is affected by Renal Tubular Acidosis-
  Urine test
  Acid load test
  Physical examination

Treatment of RTA-
Doctors prescribe either or both of the following two types of therapies-

  Alkali therapy- The pH level of urine is restored and electrolytes are balanced
  Vitamin D supplements- If RTA leads to bone deformities or rickets, your doctor will prescribe vitamin supplements to strengthen your bones.

Timely diagnosis can prevent the effects of Renal tubular Acidosis from becoming compounded. With the right medication, a person can lead a healthy normal life.

What Should You Know About Renal Tubular Acidosis?

Colorectal surgery deals with the disorders of the rectum, anus and colon. Another name of colon is  large intestine . These three body parts form the last stages of the digestive process. When the human waste passes through the colon, its salt and water are extracted before it exits the body as human excreta.

Colorectal disorders

Swelling and inflammation of the veins in the anus (also called as Haemorrhoids)
Anal fissures- unnatural cracks and fissures in the anal area
Fistulas or the unnatural connections between the anus and other anorectal areas
Conditions of constipation
Incontinence in passing of faeces
When the walls of the rectum protrude through the anus- also called as Rectal prolapse
Birth defects such as imperforate anus
Anal cancer- this condition is rare
Colorectal cancer- cancer of colon and rectum
Any injuries to the anus
Removal of any objects inserted into the anus
Bowel habits after colorectal surgery
Many patients report cases of diarrhoea, leakage of stool or gas, urgency to use the toilet and a feeling of insufficient evacuation of faeces. Relax; these conditions are not going to last forever. Your rectum and anus are adjusting to new conditions after this surgery. These organs may take six to twelve months to adjust to new bowel habits.

Is there a need to take a laxative or stool softener?
There is no need to take laxatives after a colorectal surgery. Drink lots of water to make your stool softer and easy to pass. If there is a water deficiency in your body, then it may lead to your faeces becoming hard. In that case, take milk of magnesium, colace etc.

Activities post surgery
You can continue with your normal schedule after this surgical procedure. Carry on running, jogging, exercising, climbing up the stairs etc. even after your surgery. Gastroenterologists recommend that patients should desist from lifting loads weighing more than 10 pounds so that there are no post surgery complications.

Diet after colorectal surgery
Avoid spicy and heavy to digest meals after your surgery. Once the intestines begin working normally, you can continue having your spicy food. Chew your food well to aid its digestion.

Returning to work after colorectal surgery
Most people are back to their work after taking a break of 2-5 days. If the surgery is pretty detailed, you may have to take a break of up to a month. Patients undergoing laparoscopic surgery may have to take a rest of 2- 4 weeks before they report back to work. Take it easy before slipping into your regular schedule. If working hurts after your surgery, don t do it.

Colorectal Surgery - Disorders It Can Treat!

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