An infection of the sinuses would cause the mucus membranes to inflame which could cause the bleeding. This would also cause the soft tissues to swell and block the sinuses which could also lead to the pain.
As with all such things you are best consulting a doctor as whilst the symptoms are probably nothing to worry about long term he/she will be able to give you a proper diagnoses.
mucus causes green saliva>
Infection.
Ploysinusitis is the simultaneous inflammation of multiple sinuses. What causes this is that mucus gland gets blocked, but the gland keeps making mucus and cannot drain out. The mucus will then stretch the gland and creating a mucus filled cyst.
Some mucus in the stool is normal. Conditions like irritable bowel syndrome and ulcerative colitis can cause more mucus in the stool.
Sexual arousal
it causes unusually thick mucus in the pancreas
Mucus (snot).
Cystic Fibrosis
Catarrh is inflammation of a mucus membrane particularly of the head and throat.
Chronic bronchitis is often caused by smoking. Smoking causes the bronchial tubes to become inflamed and mucus production to increase.
Your lungs are the reasons you body has Oxygen. In your lungs, we do produce mucus, which we cough up because of the cilia in our lungs. Smoking causes this cilia to not move the mucus out of your lungs which in turn causes problems.
the thinning of the cervical mucus is due to the estrogen spike prior to ovulation. This is caused by the primary oocyte signaling the anterior pituitary gland that it has matured and is ready for release.