4. A Fungal Infection Can Sometimes Look Like White Spots
A condition called tinea versicolor, caused by an overgrowth of a type of yeast that normally lives on the skin, can cause lighter or darker patches.
It most commonly affects the:
- Chest
- Back
- Shoulders
- Upper arms
- Neck
The affected areas may have fine scaling, and some people experience mild itching.
Unlike IGH, tinea versicolor is often found on areas of the trunk rather than only the lower legs and forearms.
It is also more likely to become noticeable in warm, humid conditions.
A healthcare professional can often recognize it based on its appearance, and antifungal treatment may be recommended when appropriate.
5. Post-Inflammatory Hypopigmentation
Sometimes a white or lighter area develops after the skin has been irritated or injured.
This is called post-inflammatory hypopigmentation.
It can occur after:
Eczema
A rash
Scratches
Burns
Insect bites
Skin infections
Other forms of inflammation
The original skin problem may disappear, leaving behind an area that temporarily has less pigment.