White spots the size of a pinprick on the skin
Jun 01, 2023
Source: Cainiu Health
Dr. Liu Wan
Introduction
White spots on the skin the size of a pinhead may be caused by miliaria, pityriasis versicolor, or pityriasis alba. Treatment should be based on the specific underlying cause. When high external temperatures lead to excessive sweating and blocked sweat excretion, small white spots may appear on the skin. Under a doctor's guidance, topical medications such as mupirocin ointment or calamine lotion can be applied for treatment.
White spots the size of a pinprick on the skin may be caused by miliaria (heat rash), pityriasis versicolor, or pityriasis alba, among other reasons. Treatment depends on the specific cause. Details are as follows:
1. Miliaria (Heat Rash)
High external temperatures and excessive sweating can block sweat glands, preventing proper sweat excretion and leading to the appearance of white spots on the skin. Under medical guidance, topical medications such as mupirocin ointment or calamine lotion may be applied for treatment.
2. Milia
Milia are typically small white keratin cysts formed due to excessive keratinization at the opening of sweat glands, which may result in the aforementioned symptoms. Under medical supervision, topical treatments such as adapalene gel or metronidazole gel may be used.
3. Pityriasis Alba
This condition may be associated with malnutrition, vitamin deficiency, sun exposure, or other factors that disrupt skin metabolism, resulting in pale patches accompanied by itching. Under medical guidance, topical corticosteroid creams such as fluocinolone acetonide-vitamin B6 cream or compound triamcinolone acetonide cream may be applied.
In addition to the above causes, white spots may also result from eczema, vitiligo, or albinism. It is important to take proper sun protection measures, including applying sunscreen when going outdoors.
