By Dr Choo Weng YueMBBS NUS Haemorrhoids and piles are synonymous. About one in three people in Singapore suffer from haemorrhoids. It comes about when blood vessels in the anus are enlarged and bulging due to chronic straining from difficult bowel movement. This would inevitably lead to internal haemorrhoids. Another type of haemorrhoids is external haemorrhoids – this usually happens when someone has chronic constipation or constantly strains very hard such as carrying heavy loads during work or…