What's wrong with the flesh outside the anus swelling and pain?

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Question
I'm having a condition outside the anus (I don't know if it's external hemorrhoids or something else) 2 days ago it was swollen and painful. But I have excess meat in the anus for nearly 4 years, still normal, no strange symptoms. Please ask the doctor what's wrong with the painful swelling outside the anus?
Anonymous customer question
Answer
Hi,
With your description, you may encounter anorectal problems such as external hemorrhoids, anal fistula, anal canal polyp ... To be For appropriate treatment advice, you should see a gastroenterologist.
You can go to the hospitals of Vinmec Health System for more specific advice and examination by specialist doctors. Thank you for sending the question of what's wrong with the pain outside the anus to Vinmec.
Answered by Master, Doctor Nguyen Ngoc Thang - Gastroenterologist - General Surgery Department - Vinmec Danang International General Hospital.