For a child aged 2-5 years, blue fingers

For a child aged 2-5 years, blue fingers can indicate cyanosis, which is a bluish discoloration of the skin caused by low oxygen levels in the blood. This condition often suggests underlying health issues, possibly involving the heart or lungs, and should prompt a medical evaluation.

Source | Author Doctor Nikas Samuolis, reviewed by Prof. Virginijus Šapoka | Vilnius University | Faculty of Medicine | Head of the Department of Internal Medicine, Family Medicine, and Oncology