external hemorrhoids

External hemorrhoids are located below the tooth line and are masses formed by inflammation, hypertrophy, connective tissue hyperplasia, or thrombus stasis caused by external hemorrhoid varicose veins or anal marginal folds. The surface of the external hemorrhoids is covered with skin and can be seen. It cannot be sent into the anus. It is not easy to bleed. The main symptoms are pain and foreign body sensation. Clinical is often divided into connective tissue external hemorrhoids, varicose external hemorrhoids, inflammatory external hemorrhoids, thrombotic external hemorrhoids.