Leg bruise with a bulging hard bag needs the following treatments: blood circulation and blood stasis treatment, physical therapy. Leg injury, blood away from the meridian, can cause local blood stasis, blood stasis blockage meridian, qi and blood running is not smooth, cohesion in the local non-dispersal, can form a hard bag, this time can be used orally or externally to activate blood circulation and eliminate blood stasis, and with physical therapy. 1. Activating blood circulation and removing blood stasis: drugs with the function of activating blood circulation and removing blood stasis can be taken orally, such as Panax ginseng tablets, etc., and drugs with the function of activating blood circulation and removing blood stasis, such as orthopedic water, etc., can be used externally, which can make the bulge shrink gradually. 2. Physical therapy: including infrared radiation, hot compresses, etc., can promote the operation of qi and blood, which can promote the gradual reduction of blood stasis and swelling. If there is a hard bag on the leg, we suggest that the patient go to the hospital and receive standardized treatment.