Digestion and Absorption

Disorders of Digestive System

Surely you have suffered from acidity or heartburn perhaps? Or had uncomfortable stomach pain due to unhealthy food choices? Well, then you have suffered from Digestive System Disorders. Apart from these, there are also some serious diseases of the digestive system. Let us study their causes and prevention.

Suggested Videos

previous arrow
next arrow
previous arrownext arrow


Digestive System Disorders

Disorders of the digestive system or the gastrointestinal tract are quite common. Inflammation of this tract is commonly caused by bacteria and viruses. The intestine can also be infested with parasites like Tapeworm, Hookworm, Pinworm, Roundworm, and Threadworm etc. These parasites can cause infections that need medical attention.

Apart from the above stated, some disorders of the digestive system also include abdominal pain, nausea, vomiting, bloating, constipation, heartburn, diarrhoea, incontinence, difficulty in swallowing etc.

Most of the diseases of the digestive system are related to the food that we eat.  A controlled diet, at many times, can help in reducing the discomfiture caused by certain foods. The ailments of the digestive tract can be easily detected by some specialized tests. Come standard testing procedures include colonoscopy, endoscopy, ultrasound etc.

Digestive system disorders also include Jaundice, Vomiting, Diarrhea, Acid Reflux, Constipation, Appendicitis, Indigestion, Inflammatory Bowel Disease, Gallstones, Hemorrhoids, Irritable Bowel Syndrome, Lactose Intolerance, Stomach Ulcers etc. Let us look at these in some detail.

Digestion and Absorption - Absorption and Assimilation

Browse more Topics under Digestion And Absorption



(Source: heathprep.com)

It is the excess accumulation of bile pigments in the bloodstream. In jaundice, there is a yellow discolouration of the skin, the whites of the eyes as well as the mucous membranes. This is caused by the increased amount of bilirubin in the blood, which is a byproduct of the breakdown of RBC’s in the body. Normally liver is involved in the metabolism and excretes bilirubin, in the form of bile. Any disruption in this metabolism causes jaundice. It is a most common form of the disease hepatitis.

Nausea and Vomiting

When there is irritation in the stomach, sometimes the stomach contents get ejected from the mouth. This is a reflex action and is called as vomiting. There is a forceful discharge of the stomach contents that come out of the mouth. The uneasiness that usually comes before vomiting is nausea. Vomiting and nausea are generally the symptoms of conditions such as food poisoning, stomach flu, gallbladder disease, ulcers, overeating etc.

Blood in Stool

It is an indicator of a serious problem, that signifies that there is some bleeding in the digestive tract. Anal fissures, Diverticular disease, Peptic ulcers, oesophagal problems etc. could be some of the possible causes of blood in the stool.

Peptic Ulcers

Peptic ulcers are holes or breaks in the protective lining of the duodenum or stomach. Duodenal ulcers, stomach ulcers are the types of ulcers, according to the position where they occur.  Oesophagal ulcers also occur at times, due to alcohol abuse or exposure to certain antibiotics.


It is the abnormal frequency of the bowel movement. There is an increased liquidity of faecal discharge. The stools are loose and watery. It is generally caused by viruses that cause the infection of the gut.



(Source: WebMD)

These are small pieces of solid material that we find in the gallbladder. When they block the bile duct, it causes immense pain and needs to treated immediately.

Solved Questions For You

Q: Alcohol abuse can cause many digestive disorders. Justify.

Ans. Alcohol causes immense damage to the body. Alcohol abuse has a hugely negative impact on the liver. The liver produces bile. If liver gets damaged, then it cannot produce enough bile, which is required for the emulsification of fats. This causes a major disturbance in the digestion and absorption of food. The stomach wall also tends to become harder, churning less food. Alcohol damages the lining of the stomach, causing gastritis.  Heartburn, inflammation of the pancreas, alcoholic liver diseases etc. are some of the digestive diseases that alcohol abuses causes.

Share with friends

Customize your course in 30 seconds

Which class are you in?
Get ready for all-new Live Classes!
Now learn Live with India's best teachers. Join courses with the best schedule and enjoy fun and interactive classes.
Ashhar Firdausi
IIT Roorkee
Dr. Nazma Shaik
Gaurav Tiwari
Get Started

4 responses to “Human Digestive System”

  1. Solange Annoh says:

    Please what are the functions of a digestive system?

    • Sachin says:

      Muh. Shiva gland. Stomach. Intestine liver

    • mouth chews food makes salivary starch

      gullet passes it to the stomach

      stomach churns food makes protease

      liver creates bile

      gall bladder stores bile

      pancreas makes enzymes

      stomach makes enzyme

      small intestine absorbs nutrients

      large intestine absorbs water

      rectum stores faeces

      anus gets rid of faeces

  2. Sanjay Kumar Singh says:

    I need a pdf of all definition

Leave a Reply

Your email address will not be published. Required fields are marked *

Download the App

Watch lectures, practise questions and take tests on the go.

Customize your course in 30 seconds

No thanks.