Haemorrhoids are very common. About 75% of people will have haemorrhoids at some point in their life.
In many cases, haemorrhoids don't cause any symptoms.
Anal fissures are usually caused by constipation and straining. It is common in young and middle-aged adults.
Treatment includes warm baths, stool softeners and simple pain relief. Your specialist can also prescribe medication to help relieve symptoms and speed up healing process.
Surgery is only performed in very persistent cases where self-help measures and medicine have not helped.
Anal fistula are usually the result of an infection or abscess near the anus. When the pus drains away, it can leave a small channel behind.
Symptoms include skin irritation, pain, smelly discharge from near the anus, passing pus or blood when passing stool, swelling and redness around anus and difficulty controlling bowel movements or incontinence.
Treatment usually involves surgery by a colorectal specialists as the rarely heal if left untreated.