Thrombosed external hemorrhoids (external hemorrhiod) are hemorrhoids that bleed and thrombosis of the inferior hemorrhoidal vein is often caused by constipation, excessive force in defecation, or continuous strenuous movement after inflammation of the anal vein wall. The cause is often constipation, excessive bowel movements, heavy lifting, coughing, childbirth, etc., which cause the rupture and bleeding of the inferior hemorrhoidal plexus and thrombosis. Clinical manifestations Mostly after defecation or strenuous activity, one feels a protruding lump in the anus, with severe pain, restricted activity, and even restlessness. Diagnostic points 1. Mostly after defecation or strenuous activities, there is a protruding mass in the anus with severe pain and restricted activities. 2. The lump is dark purple, round or oval, varying in size, slightly hard, and obvious pain to touch. 3. If the lump is too large, it may cause ischemic necrosis of the anal skin, or it may break down and discharge on its own, and the wound may heal itself or form an anal fistula. Family emergency treatment 1.Rest in bed, elevate the lower limbs. 2.Wet compress with 50% magnesium sulfate solution or use 50% saline wet compress. 3, available pepper 30g, salt 30g decoction of sitz bath. 4.If the pain is severe and the mass has no tendency to shrink within 1 to 3 days after the onset, it should be sent to the hospital for surgery.