What are the causes of stomach aches?

Doctor's Answer

Photo of Dr Aaron Poh
Dr Aaron Poh

Colorectal Surgeon, General Surgeon

There are some surgical conditions that may result in a tummy ache, but we will be focusing on these 4 conditions: Gallstones, Gastritis and Gastric ulcer, Swollen Piles and Painful Hernia.

  1. Gallstones

Definition & Causes:

  • They are a small, hard crystalline mass formed abnormally in the gall bladder

  • Usually caused by

  • A lack of physical activity

  • Increased intake of oily food

Some facts on Gallstones:

  • Majority of gallstones are cholesterol stones, formed by cholesterol aggregates
  • Majority of individuals with gallstones do not have symptoms, which is why it is often discovered but surgery may not be offered from the get-go
  • 15-20% of them will develop symptoms within 5 years of diagnosis, that’s where they start to experience some pain

Symptoms include:

  • ‘Indigestion’; Feeling bloated and discomfort
  • In severe cases, if the gallbladder is infected- pain in the right upper abdomen
  • Acute setting - high fever followed by yellowing of skin and eyes
  • ‘Tea’-coloured urine (bile duct blockage as a result of gallstones)
  • Pain and fever- usually denotes a gallbladder or bile duct infection, at this point urgent medical attention is needed

Treatment and Diagnosis:

  • Gallstones are usually detected on ultrasound or CT scan
  • Keyhole surgery is the recommended treatment
  • The gallbladder will have to be removed together with the gallstones as there is no way of removing the stones without damaging gallbladder
  • Despite the presence of new technology that could remove gallstones without damaging the gallbladder, it will just continue to form gallstones
  • No deleterious effects on health by removing the entire gallbladder
  1. Gastritis and Gastric ulcer

Definition & Causes:

  • Gastritis refers to the inflammation of stomach lining

  • Increased secretion of gastric acid acting on a weakened protective layer -> Increased attack, decreased defence

  • Can progress to ulcers and subsequent bleeding or perforation (hole in the stomach)

  • Usually caused by

  • Stress

  • Smoking

  • Drinking

  • Stressful Lifestyle

Symptoms include:

  • Pain over the upper central abdomen
  • Nausea and vomiting with loss of appetite
  • No definite relation to food - can occur before or after meals
  • Black stools

Treatment and Diagnosis:

  • Gastroscopy- To investigate, look at the lining of the stomach and also test for helicobacter pylori (bacteria that causes recurrent ulcers, the persistence of bacteria increases the risk of gastric cancer)
  • Treatment includes anti-acid medications and eradication of H.pylori with antibiotics (triple therapy regime: takes about 6 weeks)
  1. Swollen Piles

Definition & Causes:

  • Piles are ‘anal cushions’ filled with blood vessels that are present in everyone, prevents faeces from leaking out

  • Can be caused by an idle lifestyle, physical inactivity

  • Becomes problematic when they get larger and become swollen

  • Usually caused by

  • long term constipation

  • long term laxative use

Symptoms include:

  • Lump at the edge of the anus
  • Fresh blood on passing motion
  • Itchiness around anus
  • Prolapsed and thrombosed piles - piles are purplish and tender, the patient can’t sit down properly

Treatment and Diagnosis:

  • Simple bedside examination can easily visualise and diagnose piles
  • If there is bleeding, it is essential to get a colonoscopy especially individuals nearing 40 years old, to eliminate other colonic causes such as cancer
  • Conventional hemorrhoidectomy
  • Stapled hemorrhoidectomy (less painful option, when the piles are diagnosed early and small enough)
  • Rubber band ligation (for even smaller piles)
  • Total Hemorrhoidal Devascularisation (for piles with predominant bleeding)
  • Avoid seeking treatment only when the piles become too large to tolerate
  • Early treatment gives you more surgical options and reduces the complication rate
  • Colonoscopy must not be delayed as bleeding may not always be from piles
  1. Painful Hernia

Definition & Causes:

  • Protrusion of abdominal contents (fat or intestine) through the abdominal wall

  • Groin or inguinal hernia is the most common type of hernia and can occur in all age groups

  • For older patients, it is a direct hernia where the muscle weakens when you get older and provides an area of weakness for the hernia to protrude

  • In younger patients, it is an indirect hernia and the cause is not a weakness of muscle but a patent processus vaginalis (PPV), a congenital connection that is not closed up

  • Usually caused by

  • Jobs or daily lifestyle with prolonged heavy lifting and/or standing

  • Chronic smokers with cough

  • Chronic constipation or straining at urination

  • Ageing

Symptoms include:

  • Lump at the groin (can disappear when lying down or when pushed back in)
  • Groin discomfort
  • Large hernias (that have been left alone for years) can extend all the way to the scrotum (for males) -> at this stage recurrence is much higher

Treatment and Diagnosis:

  • Avoid delaying to get your hernia confirmed or checked - contents can become strangulated or obstructed
  • Open surgery (usually for single side) and laparoscopic surgery (for both sides)
  • Surgery involves putting in an artificial plastic mesh (non-absorbable, stays in your body for life) to avoid recurrences
  • Need to avoid heavy lifting and straining for 4-6 weeks after surgery

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