White spots on the skin that appear or become more noticeable in summer are common, but the cause can vary. A dermatologist would usually consider the spots’ shape, location, texture, scaling, and how they change over time before identifying the cause.
Common reasons for white spots in summer
1. Pityriasis alba
- Light-colored, slightly dry patches, often on the face, arms, or shoulders.
- They may stand out more after surrounding skin tans.
- What helps: Regular moisturizing, gentle skincare, and daily sunscreen.
2. Tinea versicolor (a fungal skin condition)
- Light or sometimes darker patches, often on the chest, back, neck, or shoulders.
- May have fine scaling or mild itching.
- What helps: Antifungal creams, washes, or medications recommended by a healthcare professional.
3. Sun-related white spots (idiopathic guttate hypomelanosis)
- Small, flat white dots usually on sun-exposed areas such as arms and legs.
- More common with age and long-term sun exposure.
- What helps: Sun protection can prevent worsening contrast; treatment is often optional.
4. Vitiligo
- Smooth, sharply defined white patches caused by loss of pigment-producing cells.
- May spread over time or appear in areas like hands, face, or around body openings.
- What helps: Dermatologists may use prescription creams, light therapy, or other treatments depending on the case.
What you can do:
- Use a broad-spectrum sunscreen to reduce contrast between normal skin and lighter patches.
- Moisturize dry areas.
- Avoid harsh scrubbing or unproven “skin whitening” remedies.
- Avoid using steroid or antifungal creams without knowing the cause
