Cysts in the sinuses, or nasal polyps, are small growths found throughout the nose and sinus cavity, according to the American Rhinologic Society. Cysts in the sinuses can range from small to very large, causing various levels of complications. Cysts in the sinuses rarely cause a bloody nose, but can add to the cause of the bloody nose. If someone has a bloody nose that will not stop, he should see a doctor.
Causes
Sinus inflammation and the development of sinus cysts are linked, although doctors do not know why, according to MayoClinc.com. MedlinePlus website states that people with chronic sinusitis, asthma, an aspirin sensitivity, cystic fibrosis and hay fever are more likely to develop nasal polyps. Treating a cyst in the sinuses early can help prevent the growth and development of new cysts.
Symptoms
Nasal polyps are typically accompanied by sinus inflammation, causing more symptoms, according to MayoClinic.com. The most common symptoms of nasal polyps are snoring, nasal obstruction, a runny nose, postnasal drip, sinus pressure pain, loss of smell and taste, and itching around the eyes. A bloody nose is a symptom of another condition, commonly from excessive nose picking and facial injuries, according to the Merck Manuals. A bloody nose with a sinus cyst may be the result of a severe sinus infection. Talk with a doctor if the bloody nose lasts for more than two days.
Treatment
Nose bleeds should stop by pinching the upper portion of the nose, according to the Merck Manuals. If the bleeding does not stop, talk with a doctor. If the nose bleeding is a result of a sinus infection, a doctor may prescribe antibiotics to kill the bacteria. Nasal polyps are treated with prescribed corticosteroid nasal sprays, according to MedlinePlus. Corticosteroid sprays are effective at reducing the size of most cysts in the sinuses, when used as directed. In rare cases, sinus surgery may be required to remove the cyst, according to the American Rhinologic Society.
Complications
Nasal polyps can cause chronic sinusitis, sleep apnea or an altered facial structure, according to MayoClinic.com. Chronic sinusitis occurs because of the obstructed nostrils trapping fluid in the nasal cavity. Sleep apnea causes someone to stop breathing during his sleep and could be potentially dangerous. Extreme cases of nasal polyps can lead to facial distortion by widening the eyes or nose.
Considerations
A consistent nose bleed may be a sign of a serious condition and needs to be evaluated by a doctor. Talk with an eye, nose and throat specialist for proper diagnosis and treatment options.


