White Spots on the Face: Causes and Concerns - Dermatology

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Understanding white spots on the face can be concerning, especially when they appear suddenly or change in size or shape. Based on your description, it seems you have developed several white spots on your face, some of which are the size of a coin, while others are larger with indistinct borders. Importantly, you mentioned that these spots are not painful or itchy, which can provide some clues as to their potential causes.

There are several possible explanations for white spots on the skin, and it’s essential to consider them in the context of your overall health and any accompanying symptoms. Here are some common causes:
1. Pityriasis Alba: This is a common skin condition that typically affects children and young adults. It presents as light-colored patches on the face, particularly on the cheeks. The spots are usually not itchy or painful and may be more noticeable in individuals with darker skin tones. Pityriasis alba is often associated with dry skin and can improve with moisturization.

2. Vitiligo: This is a skin disorder characterized by the loss of pigment, leading to white patches on the skin. Vitiligo can occur at any age and may be associated with autoimmune conditions. If the white spots are expanding or if you notice other symptoms, it would be wise to consult a dermatologist.

3. Tinea Versicolor: This fungal infection can cause lighter or darker patches on the skin, often on the trunk and arms but can also appear on the face. It is usually not painful or itchy and can be treated with antifungal medications.

4. Seborrheic Keratosis: These are benign growths that can appear as raised, scaly patches on the skin. They can be white, brown, or black and are more common as people age. They are generally harmless but can be removed for cosmetic reasons.

5. Milia: These are small, white cysts that can appear on the face, particularly around the eyes. They are caused by trapped keratin beneath the skin and are typically harmless.

6. Lichen Sclerosus: This is a less common condition that can cause white patches on the skin, often accompanied by changes in texture. It is more common in women and can affect the genital area.

Regarding your concern about possible parasitic infections like roundworms (蛔虫), it is important to note that while gastrointestinal symptoms such as abdominal pain can be associated with such infections, they typically do not cause white spots on the skin. Modern sanitation and hygiene practices have significantly reduced the incidence of such infections in many parts of the world.

Given that you have family members with similar spots, it may suggest a genetic or environmental factor at play. However, it is crucial to have a healthcare professional evaluate your condition to determine the exact cause of the white spots. A dermatologist can provide a thorough examination and may perform a skin biopsy or other tests if necessary.

In summary, while there are several benign explanations for white spots on the face, it is essential to seek medical advice for an accurate diagnosis and appropriate management. If you notice any changes in the spots, such as increased size, color change, or the development of new symptoms, do not hesitate to consult a healthcare provider. Early intervention can help address any underlying issues and provide peace of mind.