As researchers gather data on the coronavirus, they are discovering more potential symptoms. Many people infected with Covid are likely to have nosebleeds, but more research is needed to confirm it as a symptom. What is known so far?

Bleeding from the nose is common and has a wide range of possible causes. Anything that affects the tissues in the nose or causes damage can lead to bleeding. Some possible causes include:

- nasal congestion
- objects that get stuck in the nose
- chemical irritation
- allergies
- cold air
- upper respiratory infection

Researchers have proven that the virus that causes Covid-19 can enter cells through a receptor called ACE-2, which is found in many parts of the body, including cells that bind to:

- airways
- heart
- blood vessels
- kidneys
- gastrointestinal tract

It is likely that SARS-CoV-2 may cause inflammation in the nose, which may increase the chances of nosebleeds.

Several small studies have found evidence that people with Covid-19 experience nosebleeds more often than people without Covid-19, but more research is required to fully understand the link.

People with Covid-19 who take oxygen may be at an increased risk of developing bleeding due to increased dryness of the nose and tissue damage.

Sources: Healthline, CDC, WebMD