Yellowing of the skin after injury may be related to tissue fluid exudation, drug coverage, hyperpigmentation and other conditions.
1. Tissue fluid exudation: Due to the trauma to the epidermal tissue at the wound site, there will be tissue fluid exudation, which is usually yellowish, and the tissue fluid covering the top of the wound, which is not cleaned up in time, will be manifested as a layer of yellow film.
2. Drug coverage: after the skin injury, the need for treatment, the patient may use iodophor or isacridine lactate solution and other drugs to wipe, the color of such drugs yellowish, so the wound will look yellow.
3. Hyperpigmentation: skin tissue repair takes some time, the wound scab after the scab body off, the local tissue will have normal pigmentation, may be yellow or light pink, generally in a few months will gradually fade; if there is no skin breakage, the local tissue of the subcutaneous bruising in the process of recovery will also show yellow hyperpigmentation.
There may be other reasons for the yellowing of the injured skin, so the patient should go to the relevant departments of the hospital in time to clarify the cause and be guided by the doctor to standardize the treatment.