What causes white discoloration in external skin injuries?
Sep 15, 2023
Source: Cainiu Health
Dr. Liu Wan
Introduction
In general, whitening of skin wounds may be related to factors such as overly tight bandaging, fascia exposure, periosteal exposure, infection, or tissue ischemia. Patients are advised to follow medical instructions for symptomatic treatment. Additionally, conditions such as folliculitis or psoriasis may also contribute. If patients experience any discomfort or symptoms, they should seek timely medical attention at a hospital to avoid delaying diagnosis and treatment.
In general, whitening of the skin surface around an external wound may be related to factors such as overly tight bandaging, fascia exposure, periosteal exposure, infection, or tissue ischemia. Patients are advised to follow medical instructions for symptomatic treatment. Specific analyses are as follows:
1. Overly Tight Bandaging
If an external wound is wrapped too tightly, it may obstruct blood circulation, leading to whitening of the wound surface. Typically, this discoloration improves once the bandage is loosened or removed.
2. Fascia Exposure
If the external wound is relatively shallow, it may result in fascia exposure. Since the underlying fascia lacks blood vessels, the wound surface may appear white. Patients can use povidone-iodine to disinfect the area under medical guidance and maintain local cleanliness and dryness to help alleviate symptoms.
3. Periosteal Exposure
If the external wound is deep enough to reach the bone, the periosteum may become exposed, causing the wound to appear white. In such cases, patients may be treated with medications such as cefazolin sodium for injection or ciprofloxacin lactate and sodium chloride injection, as directed by a physician.
4. Infection
If an external wound is not promptly treated and becomes infected, purulent discharge on the wound surface may also cause whitening. Patients should seek immediate medical attention and, under a doctor’s guidance, take antibiotics such as amoxicillin capsules or cefixime tablets to treat the infection.
5. Tissue Ischemia
Inflammatory reactions in the subcutaneous tissues of an external wound can lead to tissue ischemia, resulting in a pale or white appearance. As inflammation subsides and blood flow is restored, the area typically regains its normal red color. Patients may be prescribed medications such as Yunnan Baiyao capsules or Huoxue Zhitong capsules according to medical advice.
In addition, conditions such as folliculitis or psoriasis may also contribute to wound whitening. If patients experience any discomfort or worsening symptoms, they should promptly visit a hospital to avoid delays in diagnosis and treatment.
