External hemorrhoids feel a hard lump can be caused by thrombosed external hemorrhoids, anal sebaceous cysts and other factors. 1. thrombosed external hemorrhoids: long-term eating spicy stimulating food or drinking alcohol, long-term constipation, defecation difficulties, defecation force, sedentary, etc., can lead to rupture of the external hemorrhoidal venous plexus, blood stagnation, thrombosed external hemorrhoids, bleeding in the local accumulation of external hemorrhoids can be touched on the hard lumps, the surface of the purplish-black at the same time, also accompanied by obvious symptoms of pain. 2. anal sebaceous cysts: external hemorrhoids local skin follicles become infected, after the infection of secretions can lead to local blockage to form a hard knot, can be touched in the external hemorrhoids hard lumps, can be accompanied by redness, swelling, pain and other uncomfortable symptoms, but also anal swelling, defecation abnormalities and walking restrictions and other manifestations. 3. External hemorrhoid edema: mostly occurs in inflammatory external hemorrhoids, caused by local inflammation of the anal folds edema, the appearance of external hemorrhoids skin folds lumps, touch hard lumps, often accompanied by inflammatory reaction manifestations, such as redness, swelling, heat and pain, the symptoms of bowel movements aggravated. External hemorrhoids touch a hard lump, should be timely medical examination, clear condition, under the guidance of specialists actively line appropriate treatment, help early relief of uncomfortable symptoms, to avoid aggravation of the condition.