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  • Dr. Erhart and Dr. Heer in the waiting area

    Olten Gastroenterology

    Your experts for gastrointestinal, hepatic and pancreatic disorders as well as nutritional medicine

Our services for your health

In Olten Gastroenterology practice we treat you according to the latest standards and provide the full spectrum of gastroenterology care – from prevention, diagnostics and therapy to follow-up treatment. As medical gastroenterology experts we set great store by high quality and offer long-standing clinical and practice experience. Humanity and communication as equals is not merely our ethos, it is an active part of our practice in our collaboration with you, our colleagues and within our team.

The conditions we treat

Specialised consultation hours for successful treatment

To take time for you and address your individual symptoms, we offer specialised office hours:

  • General gastrointestinal consultation hour
  • Irritable bowel consultation hour
  • Consultation hour for inflammatory bowel disease
    (IBD, microscopic colitis, eosinophilic colitis) incl. biological treatment
  • Hepatology consultation
  • Consultation hour for coeliac disease, eosinophilia and lymphocytic oesophagitis
  • Consultation hour for neurogastroenterology (motility disorders)
  • Consultation hour for infectious gastroenterology
  • Nutritional advice consultation hour
  • Waiting area

    Make an appointment

    Contact us by telephone to make an appointment for your treatment. Please note that we can only offer treatment following a referral.

We can offer the following services:



What you need to know

Sigmoidoscopy (proctoscopy/anoscopy)

including haemorrhoid treatment

What you need to know

Endoscopic (internal) ultrasound (upper and rectal endoscopic ultrasound)

incl. punctures and tumour staging

What you need to know

Liver stiffness measurement 

FibroScan® elastography

What you need to know

Hydrogen breath test

Lactose intolerance, fructose malabsorption, bacterial overgrowth

What you need to know

Specialised consultation hours

What you need to know


colorectal cancer screening

What you need to know

Small bowel colonoscopy

What you need to know

Ultrasound examination

Abdominal ultrasound, intestinal ultrasound, contrast-enhanced ultrasound

What you need to know

pH testing 

Bravo™ capsule

What you need to know

Endoscopic retrograde cholangiopancreatography (ERCP)

performed by Dr. Erhart at Olten Cantonal Hospital

What you need to know

Bioelectrical impedance analysis (BIA)

Body composition assessment
From 1 January 2023

Coming Soon

062 287 80 60