Nose with bloodshot or small blood clots is common in nasal trauma, surgery, inflammation, stones, foreign bodies and systemic diseases. In addition, red nose may also be an early symptom of nasal cavity malignant tumor. Especially for patients over middle age, they often blow out nosebleeds or flow out of their nostrils, so they should go to the hospital for detailed examination in time.

A runny nose is a common symptom of nasal diseases. Different nasal diseases can lead to different colors and characteristics of nasal mucus. If you pay attention to observation, you can find some disease signals from the colorful snot.

Clear water and runny nose are more common in patients with early colds and allergic rhinitis. However, patients with head trauma or nasal surgery, such as sudden outflow of watery liquid, should beware of cerebrospinal fluid rhinorrhea and need timely diagnosis and treatment.

White mucus nose is common in chronic rhinitis, and it can also appear under the stimulation of some physical and chemical substances in the living environment.

Mucinous runny nose is common after a cold. With the improvement of cold, purulent components in purulent nasal mucus will gradually decrease. If the course of disease exceeds 10 days, the possibility of sinusitis should be considered.

Yellow watery nasal discharge is mostly caused by the rupture of serous cyst of maxillary sinus, which is characterized by intermittent yellow watery discharge from a nasal cavity.

White residue-like nose is often caused by caseous rhinitis, which has a foul smell. If it is green and has a special smell, it is atrophic rhinitis.