What is the likelihood of a malignancy being misdiagnosed as haemorrhoids, even after an anoscopy is performed?
After an anoscopy, the doctor prescribed me medication for haemorrhoids. But even after taking a full month-long course, a week after my medications ended, the bleeding with stool has restarted. As such, I was wondering about the reliability of anoscopies, or is it relatively common for haemarrhoid medications to not be very effective in treating haemarrhoids?
Colonoscopes are an effective method to diagnose Piles and also to differentiate them from cancer (in fact they are considered the "gold standard" for cancer diagnosis), as the specialist directly examines the entire colorectal region using high resolution scope devices and takes biopsies of any suspicious lesions (a "bite" using the scope, whereby cells are examined under the microscope). Furthermore, cancers are very rare in individuals your age unless you have many blood-related relatives that had colon or other related cancers at an early age.
That being said, if you experience any loss of weight/appetite, narrow or "pencil thin" stools, low energy/giddiness, or repeat episodes of blood loss, it would be prudent to arrange an early review with the specialist that performed the scope for you in order to have another detailed discussion. Hope this helps!