Fact Check: Child’s Nosebleed Linked to PM2.5 Particulate Matter

Bangkok: A recent verification by the "Verify Before Sharing" center has confirmed that PM2.5 particulate matter is a significant factor in causing nosebleeds among children. PM2.5 refers to minute particles that are smaller than 2.5 microns, which is approximately 1/25th the diameter of a human hair. These particles can stay airborne for long durations and easily enter the human body through respiration, posing health risks to individuals across all age groups. In particular, they have been found to cause nosebleeds in some children. According to Thai News Agency, the Department of Health, Ministry of Public Health, recommends the use of N95 masks for protection against PM2.5 dust. These masks help prevent irritation, swelling, and inflammation of the nasal lining. Many children experience sneezing, nasal congestion, and nasal itching, which may lead to the rupture of capillaries and subsequent nosebleeds when the nose is rubbed or picked. For managing nosebleeds in children, first aid procedures are simil ar to those for adults. The guidelines suggest having the child lean forward and tilt their head down slightly, allowing blood to flow out of the nose instead of down the throat, to prevent vomiting of swallowed blood. Pinching the bleeding nostril gently for at least ten minutes and applying a cold compress to the nose's tip are also advised. If bleeding persists beyond 30 minutes, immediate medical attention is necessary. High-risk groups, including the elderly, young children, pregnant women, and individuals with chronic conditions such as allergies, asthma, chronic obstructive pulmonary disease, and cardiovascular disease, should take extra precautions to protect themselves from PM2.5 exposure.