Suddenly hemorrhoids out of a lump of flesh a touch also hurts, belongs to the performance of external hemorrhoids, may be caused by thrombosed external hemorrhoids, connective tissue external hemorrhoids, varicose external hemorrhoids and so on. 1. thrombosed external hemorrhoids: thrombosed external hemorrhoids refers to the external hemorrhoids or mixed hemorrhoids acute thrombosis and accompanied by anal pain and other symptoms, its main manifestation for the perianal region has a dark purple ovoid swelling, the surface of the skin edema hardness, the acute onset of pain and tenderness, and so on. 2. connective tissue external hemorrhoids: connective tissue external hemorrhoids, also known as dermatomal external hemorrhoids, generally by acute and chronic inflammation repeated stimulation, so that the anal margin skin folds connective tissue hyperplasia, hypertrophy caused by the patient may appear in the anus foreign body sensation, itching, pain and other symptoms. 3. Varicose external hemorrhoids: varicose external hemorrhoids are caused by varicose subcutaneous veins of the anus, which form a soft mass on the anal verge, mainly manifested as a localized lump, anal swelling, pain and other symptoms. In addition, perianal abscess, anal tumor may also cause such a situation, it is recommended that patients seek timely medical examination, follow the doctor’s instructions to clarify the cause of the targeted treatment.