The digestive system begins at the mouth, includes the esophagus, stomach, small intestine, large intestine (also known as the colon) and rectum, and ends at the anus. The entire system from mouth to anus is about 30 feet (9 meters) long, according to the American Society of Gastrointestinal Endoscopy (ASGE). 

Digestive system disorders can cause a lot of discomfort. Digestive disorders include the treatment of diseases of the liver and digestive tract, including the stomach, duodenum, gallbladder, pancreas, small intestine and colon. These common diseases can have very different causes.

If patient have Digestive problems with respective symptoms then following diseases may occur -

• Piles (Babasheer)

• A hard lump may be felt around the anus.

• After going to the toilet, a feeling that the bowels are still full

• Bright red blood after a defecation
• Itchiness around the anus
• Mucus discharge when emptying the bowels
• Pain while defecating
• The area around the anus may be red and sore.
• Gastritis

• Gnawing or burning sensation or pain in upper abdomen that may become either worse or better after eating
• Nausea
• Vomiting
• A feeling of fullness in your upper abdomen after eating
• Hyperacidity
• Stiffness in the stomach
• Lack of appetite
• Constipation
• Indigestion
• Sour belching
• Actual vomiting
• Feeling of restlessness

  Irritable bowel diseases

• Abdominal pain or cramping
• A bloated feeling
• Gas
• Diarrhea or constipation — sometimes alternating bouts of constipation and diarrhea
• Mucus in the stool
• Jaundice
• Weakness
• Yellowish discoloration of the eyes, skin and nail
• Flatulence
• Lack of appetite
• Burning sensation in the body
• Low-grade fever
• Indigestion
• Excessive thirst
• Anaemia
• Loss of appetite
• Weakness
• Shortness of breath andheadache, particularly withexercise
• Haemoglobin level below normal
• Swelling around eyes
• Whitish/pale tint on skin, nails & eyes
• Palpitations
• Sleeplessness
• Anorexia (loss of appetite)

• Obsessed about calories & fats
• Avoiding eating with some excuse
• Dramatic weight loss
• Secretly vomiting after meals
• Dieting despite being underweight
• Over exercising
• Constipation
• Indigestion (dyspepsia)
• Abdominal pain
• Nausea
• Flatulence
• Pain at the anus while defecating
• Heaviness of body
• Lack of appetite
• Acid eructation (belching)
• Flatulence (gas trouble)

• Belching and headache in some cases.
• Lethargy and dullness.
• Nausea.
• Loss of appetite.
• Pain or feeling of heaviness in the abdomen.
• Diarrhoea (loose motion)

• Multiple loose, watery motions
• Cramps in abdomen
• Reduction in urine quantity
• Bleeding with stools
• Burning of anus
• Low BP
• Dysentery

  Fever

• Abdominal pain

• Frequent motions with tenesmus.
• Blood & mucus in stool
• Celiac diseases

• Anemia, usually resulting from iron deficiency
• Loss of bone density (osteoporosis) or softening of bone (osteomalacia)
• Itchy, blistery skin rash (dermatitis herpetiformis)
• Damage to dental enamel
• Headaches and fatigue
• Nervous system injury, including numbness and tingling in the feet and hands, and possible problems with balance
• Joint pain
• Reduced functioning of the spleen (hyposplenism)
• Acid reflux and heartburn
• Diverticulitis (Diseases of the bowel)

• Pain, which may be constant and persist for several days. Pain is usually felt in the lower left side of the abdomen, but may occur on the right.
• Nausea and vomiting.
• Fever.
• Abdominal tenderness.
• Constipation or, less commonly, diarrhea.
• Gall bladder stone
• Nausea
• Vomiting
• Constipation
• Swelling and tenderness
• Flatulence and indigestion
• Heartburn and abdominal pain
• Halitosis (foul smell emanating from the mouth)
• Bad odour in breath
• Bleeding gums
• Dry mouth
• Mouth sores
• Liver cirrhosis

• Fatigue
• Bleeding easily
• Bruising easily
• Itchy skin
• Yellow discoloration in the skin and eyes (jaundice).
• Fluid accumulation in your abdomen (ascites).
• Loss of appetite
• Nausea
• Swelling in your legs
• Weight loss
• Confusion, drowsiness and slurred speech (hepatic encephalopathy)
• Spider-like blood vessels on your skin