The clinical features of thrombosed external hemorrhoids primarily include acute episodes of localized swelling and pain in the anal area, with thrombosis forming in the local hemorrhoidal tissue. This condition is primarily due to dry stools and excessive straining during bowel movements, leading to congestion and edema in the local hemorrhoidal tissue and subsequent disruption of local blood circulation, resulting in thrombosis. After an attack, the anal hemorrhoidal tissue may display dark red or purplish clots, enclosed by the local skin and mucous membrane. Treatment options include the application of topical medications and hot compresses to promote absorption of the hemorrhoids, as well as local surgical excision. It is important to note that if rupture or bleeding occurs, considering the possibility of local thrombus rupture, it is essential to perform proper local cleaning and disinfection and to promptly proceed with surgical excision to prevent infection.