Blood on toilet paper, pain when passing stool, or a change in your bowel habits can leave you unsure about what to do next. You may wonder whether to speak to a GP, see a colorectal surgeon, or give the symptoms more time.
The starting point is a medical assessment, especially when symptoms persist, return or worsen. Several conditions can cause similar bowel or anal symptoms, so guessing from their appearance can be misleading. A colorectal consultation helps assess the cause and the next steps. It does not automatically mean you need an operation.
At a glance
- Discuss persistent or recurring symptoms with a doctor.
- Seek urgent help for the warning signs below.
- Tests and treatment depend on your symptoms and examination.
In this article
- The colorectal surgeon’s role
- Bowel symptoms to discuss
- Anal pain and swelling
- Urgent warning signs
- Your first consultation
- Common patient questions
What does a colorectal surgeon assess and treat?
A colorectal surgeon, also called a colon and rectal surgeon, treats conditions affecting the large bowel, rectum and anus. Their work includes assessment, non-surgical care and surgery when appropriate.
A colorectal specialist may assess haemorrhoids, anal fissures, perianal abscesses and anal fistulas, as well as other bowel conditions. Your GP can assess symptoms and arrange a specialist referral when needed. The decision depends on what your symptoms and initial findings suggest.
Which bowel symptoms can a colorectal surgeon assess?
Pay attention to changes from your usual bowel pattern. These observations can help your doctor decide what needs checking.
| Change to discuss | Examples to describe |
|---|---|
| Rectal bleeding | Blood on toilet paper, in the stool or in the toilet |
| Changed bowel habits | New or persistent constipation, diarrhoea, or going more or less often |
| Other symptoms | Abdominal pain, unexplained weight loss or unusual tiredness |
These symptoms have several possible causes. They do not, by themselves, establish a diagnosis.
Tell your doctor when the change began, how often it happens and whether you have other symptoms. Mention any family history of bowel cancer. If symptoms continue after an earlier assessment, arrange a follow-up rather than assuming the original explanation still applies.
When should anal pain or swelling be assessed?
Haemorrhoids, commonly called piles, can cause bleeding, itching or lumps around the anus. An anal fissure is a small tear that can cause sharp pain during a bowel movement and burning afterwards.
Similar symptoms can come from different anorectal conditions, meaning problems affecting the anus and rectum. A history and examination help distinguish them.
A perianal abscess is an infection containing pus near the anus. It may cause pain, swelling, redness or fever. An anal fistula is a tunnel connecting the anal canal to the skin nearby; symptoms can include recurring discharge, irritation or pain.
Worsening symptoms, repeated episodes or an unusual new lump deserve medical assessment. Use the urgent-care guidance below if you are very unwell or have severe symptoms.
Severe anal pain should also be medically assessed, even without fever.
When should you seek urgent help for these symptoms?
Some symptoms need care before a routine specialist appointment.
| Warning sign | What to do |
|---|---|
| Black or dark-red stool, or bloody diarrhoea | Seek urgent medical advice |
| Severe anal pain with fever or chills | Seek urgent medical advice |
| Heavy or continuous rectal bleeding, or large blood clots | Seek emergency medical care |
Safety note: Urgent medical care takes priority over arranging a routine clinic consultation. The absence of these warning signs does not explain the cause of persistent symptoms.
What happens at your first consultation with a colorectal surgeon?
The doctor will ask about your symptoms, medical history, medicines and previous tests. Bring relevant reports and a note of the changes you have noticed.
Depending on the problem, assessment may include examining your abdomen or anal area and a rectal examination using a gloved finger. Ask what an examination involves and tell the clinician if you are worried or in pain. You can ask about having a chaperone present.
Further tests depend on the findings. A colonoscopy uses a flexible camera to examine the large bowel and may be recommended to investigate certain symptoms. It is not automatically required for every anal complaint.
Useful questions include what might be causing the problem, why a test is recommended, what the options are and when to return if symptoms continue.
Readers in Singapore can find consultation details for Dr Sulaiman, a colorectal surgeon.
What else do patients ask before a colorectal consultation?
Does seeing a surgeon mean I need surgery?
No. Colorectal surgeons also provide non-surgical care. The treatment discussion depends on the diagnosis, severity and your circumstances.
Can I assume bright-red bleeding is just piles?
No. Haemorrhoids and anal fissures can cause bright-red bleeding, but other conditions can too. A doctor can assess the cause.
What if I feel embarrassed about an examination?
Tell the clinician. Bowel and anal symptoms are part of their work. You can ask them to explain the examination and discuss your concerns.
This article provides general information and cannot diagnose individual symptoms.
