How long does it take for an abrasion to heal?

　　The healing time for abrasions depends on the severity of the injury. Mild abrasions typically heal within 5–7 days, moderate abrasions require 10–14 days, and severe abrasions involving deeper tissues may take 2–3 weeks. If signs such as wound pus, persistent pain, or fever occur after an abrasion, seek immediate medical attention at a surgical or dermatology clinic.

　　Mild abrasions affect only the superficial layer of the skin, presenting with slight redness, swelling, and a small amount of clear fluid exudation. After cleaning and disinfecting, keeping the area dry will lead to scab formation within 5–7 days. Once the scab falls off naturally, the skin usually recovers completely. Avoid friction on the wound during this period to prevent premature scab loss and secondary injury.

　　Moderate abrasions extend into the shallow underlying tissue beneath the epidermis, resulting in deeper wounds with increased exudate, along with possible mild redness, swelling, and pain. These require daily disinfection with iodophor and regular changing of sterile dressings. Healing gradually occurs over 10–14 days. A temporary light red mark may remain after healing; avoiding sun exposure can help the mark fade more quickly.

　　In daily care, avoid getting the wound wet and refrain from scratching before scab formation. Increase intake of protein-rich foods and reduce consumption of spicy foods. If redness and swelling around the wound begin to spread, seek medical treatment promptly.