Yellow water from skin abrasions may be caused by tissue exudate, pus and so on. 1. Tissue exudate: After skin abrasion, yellow tissue exudate may appear during the wound repair process. This is a normal physiological manifestation and generally does not require treatment. 2. Pus: skin abrasions are prone to induce inflammation, resulting in localized infection, at this time, the wound will appear pus, the affected area will be manifested as a wound flowing yellow pus. It is recommended that patients with skin abrasions after the flow of yellow water need timely medical attention, if it is caused by tissue exudate, the trauma is small can not be dealt with, the trauma is large, the external use of drugs to reduce exudate can be, such as boric acid solution. If it is caused by local infection, you need to use fusidic acid, compound polymyxin B and other drugs under the guidance of the doctor, the serious condition of the need for oral cefixime, amoxicillin and other antibiotics. In addition, patients usually need to keep the wound clean, avoid touching water, so as not to aggravate the infection.