All information confirms that the headache is a medical condition, which is among the most common health problems. Migraine, tension headache, chronic daily headache, whatever they technically call it, in any event, it is the fact that more than half the world’s population suffers from headaches.
The only thing on which the patients with headache focus are the pain and how to get rid of, not paying any special attention to its cause. Experts are differentiating the headaches into two major categories: primary and secondary headaches.
Primary headache disorders include those headaches that represent a disease in itself, and have no connection to some other disease. These headaches include migraine, tension headache, cluster headache and other rare primary headaches. The most common in this group are migraine and tension headaches. A lot of people suffer from this type of headache and the impact of the pain on the quality of everyday life of the individual is huge.
These headaches may appear in so-called episodic form when headache attack occurs less than 15 days a month, but can switch to a state that is called a chronic daily headaches, when patients have headaches every or every other day.
Very rarely, some of these headaches can be associated with conditions that endanger life, as for example in migraine with aura, where the risk of stroke is slightly increased, especially in women who are smokers, and in parallel using oral contraceptives.
Contrary to the primary headaches, secondary headaches are simply symptoms of other diseases. Many medical conditions can manifest with a headache. These are for example, trivial disease in conjunction with a mild infection, frequent headaches associated with disturbance of the function of the cervical spine, disorder of the functions of the eyes and to very serious diseases, such as meningitis, inflammation of the brain, a tumor of the brain and cerebral cortex, a disease of the blood vessels of the brain, etc.
Depending on the disease, which provoke secondary headaches they are divided into several groups. Headache as a result of injury of the head and neck which occurs in a period of several hours to up to seven days after injury. After the rehabilitation of the damage and its consequences headaches slowly disappear. Headache may be accompanied by diseases of the blood vessels of the head. These headaches, except in rare cases, have no specific clinical features. In fact, the diagnosis of brain infarction or cerebral hemorrhage does not go in relation with the headache, but in relation to other symptoms.
The group of headaches due to non-vascular intracranial diseases includes headaches due to a brain tumor, reduced or increased pressure of cerebrospinal fluid (hydrocephalus), congenital abnormalities, seizure, etc.
Headaches from taking or withdrawal of certain substances such as nitrogen oxide, carbon monoxide, phosphodiesterase, alcohol, cocaine, cannabis (marijuana), histamine and some accessories.
Headaches may also occur as a result of long-term use of individual drugs, including medicines for headache such as analgesics, the preparation of ergotamine or triptans. This is a special form of headaches characterized by headaches as a result of excessive medication.
Headaches due to infections are a regular follower of infection within the skull, infections such as meningitis (inflammation of the brain), encephalitis (inflammation of the brain), purulent abscess of the brain, epidural empyema, etc.
In the group of headaches due to a fault homeostasis include headaches due to hypoxia (reduced oxygen supply to the cornea) and hypercapnia (controlled gradual increase in carbon dioxide content), then a headache with hypertension, hypothyroidism (decreased thyroid function) in patients on dialysis, prolonged starvation and other conditions.
Headaches due to diseases of the skull and face, caused by inflammation, tumors of the skull, , eye, ear, nose, teeth, mouth, sinuses… It is an acute headache that disappears with the cure of diseases which provoked the headache.
Headaches due to psychiatric illness as chronic pain generally play a very important role. Emotional problems increase the pain, which is a real source of the pain. The pain can occur due to direct consequences of emotions. For example headaches are caused by somatization and psychotic disorder.