I am Dr Teoh Tiong Ann, Consultant Colorectal Surgeon and General Surgeon at Teoh Colon Rectum & General Surgery based in Mount Elizabeth (Orchard) Hospital Singapore. I specialise in the treatment of colon and rectal cancers, as well as anal conditions such as piles, fistulae (abnormal connections) and fissures (tears). I specialise in the treatment of colon and rectal cancers, as well as anal conditions such as Haemorrhoids (piles), key-hole Surgery for Gallstones, Appendix, Hernia and Colonoscopy and Gastroscopy and investigation of abdominal problems. I trained in General Surgery at the National University of Singapore and attained my fellowships from the Royal College of Surgeons of Edinburgh, UK and the Academy of Medicine of Singapore. I was subsequently awarded a Singapore Government Health Manpower Development Plan (HMDP) scholarship to pursue subspecialty training in colorectal surgery at the world-renowned Cleveland Clinic in Florida, USA. I am a founding member of the Endoscopic and Laparoscopic Surgeons of Asia and of the Society of Colorectal Surgeons in Singapore, and was a member of the American Society of Colon and Rectal Surgeons (ASCRS). Besides treating colon and rectal cancers, and anal conditions such as piles, I also perform keyhole surgeries such as gallstones, appendix removal, Hernia, Colon (large intestine) surgery, and endoscopic procedures such as gastroscopy and colonoscopy. Learn more about Mount Elizabeth Hospital here: https://patients.smarterhealth.sg/hospital/mount-elizabeth-hospital-singapore/ Learn more about me here: https://patients.smarterhealth.sg/specialist-doctor/teoh-tiong-ann/ I am excited to be here and I will be actively answering questions. Whether you've got questions about general, stomach, gallbladder, colorectal or pernianal surgery, ask me anything! === Want to ask a question? Submit your question at the bottom of this page. Don’t forget to include your name and email address to get notified when the doctor answers your question. Please also include your age and gender in your question to aid the doctor in providing you with an answer.
Doctor, my mother’s stools are watery, and she always defecates after eating. I gave her medicines for diarrhoea but her condition persists. Please give me your advice on what happened to her. She is 68 years old.
Doctor, my left stomach hurts so much and my bowel movement is hard and hot. Why is this so? I am a 32 year old male.
I often find it hard to defecate, I feel a stomach ache, but when I go to the toilet I will be squatting for long durations of time but the feces does not emerge. I feel bloated because of this issue. I can always hold back when I want to defecate, up to 12 hours. Do you know why and is it dangerous?
I am a 39 year old male. I have suffered from haemorrhoids for a long time but in the past year, I had trouble defecating. There was a lump in my anus during defecation and I inserted it back in afterwards. The feces that came out were flat, sometimes dark brown. Could this possibly mean I have cancer?
I had digestive problems, diarrhoea, blood in my feces, and am experiencing bloating and sudden weight loss for about 1 month. I’ve consulted with the doctor, and consumed some medicines but I’m not getting better. Does this condition usually require surgery?
Good afternoon, Doctor. My anal canal is red and swollen, and there is a lump inside it. What is the cause? It hurts and it is uncomfortable.
Hello Sir, I was feeling a small lump ( mostly in the evening ) in my left side of scrotum . So i went to GP and Urologist , Both have done the clinical examination and said i do not have Hernia for sure . just To clear my worried mind , He asked me to to do ultrasound if i think so. When i did ultrasound , As per ultrasound i am dignosed with bilateral inguinal hernia with left side is large and right one very small. Should i rely on ultrasound or clinical examination in this case ? How soon i need to repair it . It casuse mild discomfort when i sit for long time and my appetite is low.