Emergency: bleeding past 20 minutes of proper pinching, after a head or face injury, heavy enough to swallow or choke on, with dizziness or fainting, or on blood thinners. Most nosebleeds stop in 10 to 15 minutes with the right technique.
The technique that works: sit up, lean forward (never tilt back), pinch the soft part of the nose firmly below the bony bridge, hold 10 to 15 minutes by the clock without peeking; a cold cloth or an oxymetazoline spray helps shrink the vessel. Back-of-nose bleeds, blood running down the throat more than out the front, are common in older adults, harder to stop, and often need packing. Book an appointment for bleeds recurring several times weekly (usually a dry, picked vessel that petroleum jelly heals, but occasionally worth a blood count) or for nosebleeds plus easy bruising or bleeding gums, a clotting-workup signal. Prevention for repeaters: humidifier at night, saline spray, a smear of petroleum jelly inside the nostril, and no picking or hard blowing for a week while the vessel seals.
What to do
Common questions
When is a nosebleed an emergency?
Most nosebleeds are front-of-nose bleeds from dry air, nose picking, or a bump, and they stop with correct first aid in 10 to 15 minutes. Correct first aid, per MedlinePlus: sit up and lean forward (never tilt back, which sends blood into the throat and stomach), pinch the soft part of the nose shut firmly just below the bony bridge, and hold a full 10 to 15 minutes by the clock without peeking; a cold cloth on the nose helps, and a decongestant spray like oxymetazoline can shrink the bleeding vessel if you have it. The emergency list: bleeding that continues past 20 minutes of proper pinching; bleeding after a head or face injury; blood heavy enough that you are swallowing or choking on it; nosebleed plus dizziness, pale skin, or fainting (blood loss signs); nosebleeds on blood thinners (warfarin, apixaban, clopidogrel, even daily aspirin) that do not stop promptly; and bleeding from the back of the nose (blood running down the throat more than out the nostril, common in older adults, harder to stop, often needs packing). The book-an-appointment list: nosebleeds recurring several times a week, especially in kids (usually a dry, picked vessel that a dab of petroleum jelly or a saline gel heals, but recurrent bleeds occasionally warrant a blood-count check), and any nosebleed with easy bruising or bleeding gums elsewhere, which suggests a clotting issue worth testing. Prevention for the chronic bleeder: humidifier at night, saline spray, a fingertip of petroleum jelly just inside the nostril, and no picking or forceful blowing for a week after a bleed, while the vessel seals.