The appearance of white patches on children’s arms may be caused by a variety of reasons, such as non-disease factors or disease factors, common disease factors include inflammation or infection, endocrine metabolic disorders, and so on.
1. Non-disease factors
(1) Physical factors. Such as trauma, sunlight, burns, ionizing radiation, etc., can lead to local skin white spots.
(2) Chemical factors. Such as a variety of catechol and phenolic compounds, glucocorticoid intradermal injection, etc., can also lead to local white spots.
2. Disease factors
(1) Inflammation or infection. Such as eczema, neurodermatitis, wasp stings, psoriasis, lichen planus, etc., a variety of inflammatory dermatoses can lead to local skin hypopigmentation spots after inflammation.
(2) Endocrine metabolic disorders. When hypopituitarism occurs, it can lead to diffuse hypopigmentation of the skin, which can also lead to white spots on the arms.
(3) Malnutrition. Such as ulcerative colitis, severe protein deficiency, etc., can lead to the body’s melanin hypopigmentation, which can lead to the appearance of white spots on the arm.
(4) Genetic or developmental abnormalities. Such as albinism, phenylketonuria, anaplastic nevus, anemic nevus, etc., which may also lead to white spots on the arm skin.
(5) Other diseases. Such as vitiligo, idiopathic punctate white spots, sclerosing atrophic moss and so on.
It is recommended that children with white spots on their arms should clarify the specific cause of the white spots after timely consultation.