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Diseases of Anus And Rectum
At GastroDoxs in Houston, Dr. Scott provides expert diagnosis and personalized care for conditions affecting the anus and rectum, including hemorrhoids, anal fissures, abscesses, and rectal bleeding. Using minimally invasive techniques, advanced imaging, and targeted medical therapies, patients experience effective relief and improved quality of life.
Dr. Scott Liu, MD, is a board-certified gastroenterologist with over six years of experience and a background in military medicine. He earned his medical degree from the University of Maryland, Baltimore, completed his Internal Medicine residency at Naval Medical Center Portsmouth, and finished his Gastroenterology fellowship through the National Capital Consortium. Dr. Liu provides comprehensive care for a broad range of digestive conditions, including abdominal pain, acid reflux, liver disease, chronic diarrhea, and colon cancer screening. He is a member of the American College of Gastroenterology and is known for his disciplined, patient-focused approach and clear communication.
Common Causes and Risk Factors
H. pylori infection - bacteria that damages the stomach lining
NSAID use - regular ibuprofen or aspirin irritates the gut
Smoking and alcohol - weaken natural stomach defenses
Stress and poor diet - spicy, fatty or acidic foods can trigger symptoms
Family history - predisposition to ulcers and gastritis
Signs and Symptoms
Burning or gnawing pain in the upper abdomen
Feeling full, bloated or belching after meals
Nausea or occasional vomiting
Loss of appetite or unintended weight loss
Dark, tarry stools (possible sign of internal bleeding)
How Dr. Scott Diagnoses Diseases of the Anus and Rectum
Dr. Scott uses a thorough diagnostic approach:
Medical History and Physical Exam
He reviews your bowel habits, bleeding, pain during defecation, recent changes in stool shape or consistency, and any history of abscesses or infections. A visual and digital rectal exam helps assess swelling, fissures, or masses.
Anoscopy and Proctoscopy
These in-office procedures allow direct visualization of the anal canal and lower rectum to identify hemorrhoids, fissures, or signs of infection or inflammation.
Colonoscopy (if needed)
If there's rectal bleeding, unexplained changes in bowel habits, or suspicion of rectal cancer, a colonoscopy is performed to examine the entire colon and rectum and collect biopsies if needed.
Imaging Studies
Pelvic MRI or endoanal ultrasound may be used to evaluate complex fistulas, abscesses, or suspected rectal tumors.
Laboratory Tests
Stool tests may be ordered to check for infections, blood, or inflammation. Blood work may include complete blood count (CBC) to detect anemia from chronic bleeding.
Treatment
Our Team offers a full range of care for diseases of the anus and rectum.
1. Lifestyle and Diet Modifications
Increase dietary fiber and fluid intake to prevent constipation
Avoid prolonged sitting and straining during bowel movements
Practice good anal hygiene and avoid irritants
2. Medications
Topical treatments such as corticosteroid creams and analgesic ointments
Oral pain relievers and stool softeners
Antibiotics for anal infections or abscesses
3. Minimally Invasive or Advanced Procedures
Rubber band ligation or sclerotherapy for hemorrhoids
Dr. Scott Liu, MD, is a board-certified gastroenterologist with over six years of experience and a background in military medicine. He earned his medical degree from the University of Maryland, Baltimore, completed his Internal Medicine residency at Naval Medical Center Portsmouth, and finished his Gastroenterology fellowship through the National Capital Consortium. Dr. Liu provides comprehensive care for a broad range of digestive conditions, including abdominal pain, acid reflux, liver disease, chronic diarrhea, and colon cancer screening. He is a member of the American College of Gastroenterology and is known for his disciplined, patient-focused approach and clear communication.
Frequently Asked Questions
What are common symptoms of hemorrhoids?
Symptoms include itching, pain, swelling around the anus, and bright red blood on toilet paper or in the stool.
Can anal fissures heal on their own?
Minor fissures often heal with conservative care like stool softeners and sitz baths, but persistent fissures may require medical treatment.
When should I see a doctor for rectal bleeding?
Any rectal bleeding should be evaluated, especially if it�s recurrent, associated with pain, or accompanied by changes in bowel habits.
What treatments are available for anal abscesses?
Drainage is usually required, followed by antibiotics if infection is present. Prompt treatment prevents complications like fistulas.
Are lifestyle changes effective in managing anorectal diseases?
Yes, increasing fiber and fluid intake, avoiding straining, and practicing good hygiene can reduce symptoms and prevent recurrence.
How painful is rubber band ligation for hemorrhoids?
Most patients experience mild discomfort during and after the procedure, which is usually well controlled with pain medications.
Can diet affect diseases of the anus and rectum?
A high-fiber diet promotes soft stools and regular bowel movements, which helps prevent and manage many anorectal conditions.
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