The nasal septum is in the area between the left nasal cavity and the right nasal cavity. It consists of three parts: the vertical plate, the plow bone, and the cartilage. In most people, the septum is not centered and is slightly deviated. A common disorder of the nasal septum is deviated nasal septum, and the common symptoms are as follows. 1. Runny nose. After the deviation, the glands inside the nose are stimulated to secrete a large amount of material, which in turn produces a runny nose. If the nasal cavity is unfortunately infected by germs, the secretion will be even more. The nasal discharge from a simple deviated septum is mucus, while when sinusitis appears, the mucus turns into purulent. 2. Blockage of the nose. After deviation, the nasal cavity appears to be not breathing well. When the cold comes, the nose is completely blocked. When this happens for a long time, the turbinates become thicker, resulting in smaller nasal passages. At this time, only one side of the nose is blocked, but now both noses become blocked. In addition to nasal congestion, the patient will have the feeling of dry nasal cavity. 3. Nasal bleeding or headache. After the deviation of the septum, it will make part of the mucous membrane of the nose irritated by the air. In the long run, that part will become dry and the mucous membrane will become thin, causing the nose to bleed easily. The deviation can compress the nerves in the nose, and the pain is transmitted to the head through the nerves. If there are conditions such as nasal congestion, runny nose and nasal bleeding at the same time, then perhaps the septum is deviated and you should go to the hospital for specialized treatment.