地虱,又名地虱婆、鼠妇虫、土猫等,体长约0.4寸,扁长舟形,头部前缘中央及左右缘明显突起,胸部分七节,每节有足一对,体背呈深褐色或灰褐色,有许多浅色花纹,于房屋周围潮湿有腐烂植物的地方即可捕获,以7～9月为最佳。其性味酸凉,有破血祛瘀止痛、消症瘕、利水之效,用于治疗妇女经闭、症瘕及小便不利、水肿等症。笔者将地虱炮制成粉,内外合治痔疮52例, The mantle, also known as the scorpion, rat worm, cat and so on, is about 0.4 inches in length and has a long boat shape. The center of the head and the left and right edges of the head protrude prominently. The chest section is seven knots. Each section has a pair of feet. The back of the body is dark brown or gray-brown with a lot of light-colored patterns. It can be caught in places with damp plants around the houses. It is best from July to September. Its taste is sour and cool, it has blood stasis and pain relief, eliminates phlegm, and diuresis. It is used to treat women’s amenorrhea, dystresia and dysuria, and edema. The authors made powder from earthworms and cured 52 cases of hemorrhoids internally and externally.