O negative is a blood group that neither has the A or B markers nor the Rh factor. In its plasma, it donât has anti-A antibodies and anti-B antibodies. People with O negative blood group can donate their blood to all types of blood groups either A, B, AB, O, their -ve and +ve.
Larynx (Throat) Polyps. Laryngeal polyps (also called throat or vocal cord polyps) are growths on the larynx (voice box). In most cases it is the result of injury to the vocal cords (folds of mucous tissue in the voice box) through overuse of the voice.In the vast majority of cases, they are not cancerous.he most common sites for growth are the nasal passage of the nose, the vocal cords (larynx) and colon (colorectal polyp). The two types unique to women are uterine polyps and cervical polyps. The cause of cervical polyps is not completely understood.
A person with a laryngeal polyp has a growth on the vocal cord. A polyp is a ball of tissue, attached to the vocal cord by a stalk.Laryngeal polyps are made up of the cells that line the vocal cords. In most cases, laryngeal polyps are caused by an injury to the vocal cords by overusing the voice.Most laryngeal polyps are non-cancerous.reatment for laryngeal polyps depends on the size of the polyp. Treatment may include resting the voice, and surgery to remove the polyp. A special procedure, known as microlaryngoscopy, allows the doctor to remove a laryngeal polyp without making an incision.