
The Digestive Disease Clinic at Yas Healthcare provides comprehensive, state-of-the-art care for patients with gastrointestinal and liver disorders. Our goal is to deliver accurate diagnosis, effective treatment, and personalized care using the latest medical technologies and evidence-based practices.
Our American Board-certified gastroenterologist specializes in the evaluation, diagnosis, and management of a wide range of digestive conditions, helping patients achieve better digestive health and improved quality of life.
We provide expert care for conditions affecting the digestive system, liver, pancreas, and biliary tract, including:
Colon cancer screening and prevention
Gastroesophageal reflux disease (GERD)
Irritable bowel syndrome (IBS)
Inflammatory bowel disease (Crohn’s disease & ulcerative colitis)
Peptic ulcer disease
Liver diseases
Pancreatic disorders
Biliary tract conditions
Our clinic focuses on early detection, preventive screening, and advanced treatment options to support long-term digestive health.
At Yas Healthcare, we combine specialist expertise with advanced diagnostic techniques to ensure accurate evaluation and effective treatment plans tailored to each patient.
For more details about specific procedures, diagnostic tests, and preparation instructions, please refer to the links provided below.
At Yas Healthcare’s Digestive Disease Clinic, we provide advanced colonoscopy screening and diagnostic procedures to detect and prevent colon cancer and other gastrointestinal conditions.
A colonoscopy is a medical procedure used to examine the inner lining of the colon (large intestine) and rectum using a thin flexible tube with a small camera called a colonoscope. This procedure helps doctors identify polyps, inflammation, bleeding, or early signs of colorectal cancer.
Because colonoscopy allows doctors to detect and remove precancerous polyps during the same procedure, it is considered the most effective test for colon cancer screening.
Colon cancer screening is performed to detect cancer or precancerous growths before symptoms appear. Early detection significantly increases the chances of successful treatment and prevention.
Polyps are small growths in the colon that may develop into colorectal cancer over time. During a colonoscopy, these polyps can be safely removed, reducing the risk of cancer.
Most medical guidelines recommend that adults begin colon cancer screening at age 50 if they have an average risk of developing the disease.
However, screening may begin earlier (around age 40 or younger) if you have:
A family history of colon cancer
A history of colon polyps
Certain digestive diseases
Genetic conditions that increase colon cancer risk
Your gastroenterologist will recommend the best screening schedule based on your medical history.
Your doctor may recommend a colonoscopy if you experience symptoms such as:
Blood in the stool
Changes in bowel habits
Unexplained anemia
Persistent abdominal pain
Abnormal results from another colon test
A history of colon polyps or colorectal cancer
A colonoscopy helps doctors diagnose digestive conditions and determine the most appropriate treatment plan.
Proper preparation is essential to ensure accurate results.
Before the procedure, your doctor will provide instructions that may include:
Following a special low-fiber diet
Drinking a bowel preparation solution to clean the colon
Temporarily stopping certain medications
The bowel preparation causes temporary watery diarrhea, which clears the colon so the doctor can see the intestinal lining clearly.
During the colonoscopy procedure:
You will receive medication to help you relax and remain comfortable.
A thin flexible colonoscope is gently inserted into the rectum and advanced through the colon.
The camera transmits images to a monitor so the doctor can examine the colon.
If needed, the doctor may:
Remove polyps
Take a biopsy (tissue sample) for laboratory testing
These procedures are painless because the colon has few pain-sensitive nerve endings.
After the procedure:
You can usually resume eating normally
You should avoid driving or returning to work for the rest of the day
Your doctor will advise when to restart any medications
Most patients recover quickly and can return to normal activities the following day.
Although complications are rare, contact your doctor immediately if you experience:
Severe abdominal pain
Persistent vomiting
Fever
A hard or swollen abdomen
Heavy bleeding from the rectum
At Yas Healthcare, our Digestive Disease Clinic provides expert care and advanced gastrointestinal diagnostics.
Our services include:
✔ Colon cancer screening and prevention
✔ Advanced colonoscopy procedures
✔ Diagnosis and treatment of digestive disorders
✔ Care from an American Board-certified gastroenterologist
✔ Personalized treatment plans for every patient
Our goal is to help patients maintain long-term digestive health through early detection and advanced medical care.
An upper endoscopy, also known as gastroscopy, is a diagnostic procedure used to examine the upper digestive tract, including the esophagus, stomach, and duodenum (the first part of the small intestine).
During the procedure, a doctor uses a thin flexible tube with a small camera and light (endoscope) to view the lining of the digestive tract. Upper endoscopy helps diagnose and treat conditions affecting the digestive system, including acid reflux, ulcers, inflammation, bleeding, and abnormal growths.
At Yas Healthcare’s Digestive Disease Clinic, upper endoscopy procedures are performed using advanced endoscopic technology and expert gastroenterology care.
Your doctor may recommend an upper endoscopy test if you experience symptoms such as:
Persistent upper abdominal pain
Acid reflux (GERD) or heartburn
Long-lasting nausea or vomiting
Chronic diarrhea
Black stools or blood in vomit
Difficulty swallowing or food getting stuck in the throat
Abnormal results from other digestive tests
A swallowed foreign object
Follow-up evaluation of ulcers or growths in the digestive tract
Upper endoscopy helps doctors identify the cause of these symptoms and determine the most appropriate treatment.
Your doctor will provide instructions to help prepare for the procedure. Preparation may include:
Stopping food and drinks for several hours before the test
Temporarily stopping certain medications
Following any additional instructions given by your doctor
It is important to carefully follow preparation guidelines to ensure the procedure is accurate and safe.
During the procedure:
An IV line will be placed in your arm or hand.
Medication will be given to help you relax and feel comfortable.
Your doctor may use a numbing spray to reduce throat discomfort.
A small mouth guard is placed to protect your teeth.
The doctor then gently passes the endoscope through the mouth and into the esophagus, stomach, and duodenum to examine the lining of the digestive tract.
During the exam, your doctor may also:
Perform a biopsy (take a small tissue sample for laboratory testing)
Stop bleeding
Remove growths
Treat narrowing of the esophagus that may cause swallowing difficulties
Most patients do not feel pain during the procedure.
After the procedure, you will remain under observation for 1–2 hours while the sedative medications wear off.
Most patients:
Should not drive or return to work on the same day
Can usually resume normal activities the following day
Can eat normally after the procedure unless advised otherwise by the doctor
Your doctor will provide instructions regarding medications and follow-up care.
Upper endoscopy is generally a safe procedure, but mild side effects can occur.
The most common effects include:
Bloating
Mild throat discomfort
Temporary nausea due to sedation
Rare complications may include:
Bleeding (especially if a growth is removed)
Infection
Tear in the digestive tract lining
Irritation around the IV site
Your doctor will discuss any potential risks before the procedure.
Contact your doctor immediately if you experience any of the following symptoms after an upper endoscopy:
Severe abdominal pain
Persistent vomiting
Fever
Difficulty swallowing or severe throat pain
Black stools
A swollen or hard abdomen
At Yas Healthcare, our Digestive Disease Clinic provides advanced diagnostic and therapeutic endoscopy procedures.
Our services include:
✔ Upper endoscopy (gastroscopy)
✔ Colonoscopy screening
✔ Diagnosis and treatment of digestive diseases
✔ Care from an American Board-certified gastroenterologist
✔ Advanced endoscopic technology for accurate diagnosis
Our goal is to provide early detection, effective treatment, and improved digestive health for every patient.
A flexible sigmoidoscopy is a diagnostic procedure used to examine the lower part of the large intestine (colon), including the rectum and sigmoid colon. The procedure is performed by a trained endoscopist, a doctor specialized in gastrointestinal endoscopic procedures.
Flexible sigmoidoscopy is commonly used to detect colon polyps, inflammation, or early signs of colon cancer, especially in adults over the age of 50 as part of routine colon cancer screening.
In some cases, a colonoscopy, which examines the entire large intestine, may be recommended depending on the patient’s symptoms or medical history.
Your doctor may recommend a flexible sigmoidoscopy for several reasons, including:
Colon cancer screening
Detection of colon polyps
Blood in the stool or rectal bleeding
Persistent diarrhea
Evaluation of inflammation of the colon (colitis)
Follow-up after pelvic radiation therapy
Examination of the colon alongside other tests such as barium enema studies
This procedure helps doctors diagnose digestive conditions and guide appropriate treatment.
Proper preparation is necessary to ensure that the lower colon is clean and clearly visible during the examination.
Your healthcare provider will give detailed instructions that may include:
Following a clear liquid diet
Taking laxatives
Using an enema before the procedure
These steps help clear the colon so the doctor can obtain the most accurate view of the intestinal lining.
Some medications may need to be temporarily stopped before the procedure.
Examples include:
Iron supplements (which can coat the colon lining)
Blood thinners such as warfarin (Coumadin®)
Most medications for blood pressure, heart disease, lung conditions, and seizures can usually be taken on the day of the test.
Patients with diabetes may require medication adjustments before the examination. Always consult your doctor for specific guidance.
Flexible sigmoidoscopy is a quick procedure, usually lasting 5–15 minutes.
During the procedure:
You will lie on your left side with your knees bent.
The doctor gently inserts a thin flexible tube called a sigmoidoscope into the rectum.
The scope contains a camera and light, allowing the doctor to view the colon on a monitor.
During the examination, the doctor may:
Take biopsies (small tissue samples for laboratory testing)
Remove polyps
Introduce air to expand the colon for better visibility
Biopsies do not cause pain, but you may experience mild cramping or pressure during the procedure.
Because the procedure is short and generally well tolerated, sedation is usually not required.
Flexible sigmoidoscopy is a very safe procedure, and complications are uncommon.
Rare complications may include:
Minor bleeding, especially after biopsy or polyp removal
Perforation (tear) in the colon wall, which is very rare
Contact your doctor immediately if you experience:
Severe abdominal pain
A swollen or firm abdomen
Vomiting
Fever
Significant rectal bleeding
Most patients tolerate the procedure very well.
After the examination:
You can usually return to normal activities immediately
Eating and drinking can resume as usual
Many patients can drive and return to work the same day
Your doctor will discuss the results of the procedure and inform you if further testing or treatment is required.
At Yas Healthcare’s Digestive Disease Clinic, we provide advanced diagnostic and therapeutic endoscopy services.
Our services include:
✔ Flexible sigmoidoscopy
✔ Colonoscopy screening
✔ Upper endoscopy (gastroscopy)
✔ Diagnosis and treatment of digestive diseases
✔ Care from an American Board-certified gastroenterologist
Our goal is to provide early detection, accurate diagnosis, and effective treatment for digestive health conditions.

Qualification
American Board of Gastroenterology
American Board of Internal Medicine
Areas of Interest
Food intolerance and coeliac intolerance