Home » What is Brain Tumor | Causes of Brain Tumor

What is Brain Tumor | Causes of Brain Tumor

by Ilham Sheikh
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causes of brain tumor

What is a brain tumor?

A brain tumor is a mass of abnormal cells that forms inside the brain. These tumors may be benign or malignant (cancerous). Benign tumors do not spread to other parts of the body, while cancerous tumors can. Malignant brain tumors are considered “primary” if they start in the brain, and “secondary” if they develop elsewhere and then move into the brain.

Primary vs Secondary Brain Tumors

Primary brain tumors are those that begin in the brain and stay there. Secondary brain tumors are those that originate outside of the brain and spread into the brain. Most primary brain tumors are benign, whereas most secondary brain tumors are malignant.

Treatment Options for Brain Tumors

Treatment options for brain tumors depend on whether the tumor is benign or malignant. If the tumor is benign, surgery is usually recommended. Surgery involves removing the tumor and any surrounding normal brain tissue. Radiotherapy and chemotherapy are also sometimes used after surgery. If the tumor is malignant, treatment options vary depending on the type of tumor and the location. Radiation therapy is often used for tumors near the brain stem. Chemotherapy is also used to treat some brain cancers. The treatment cost of a brain tumor in India starts from Rs. 80000


Causes of Brain Tumor

Following are the causes of Brain Tumor

  1. Genetics

As per oncologists from the best cancer hospitals genetics plays a huge role in brain tumor formation. There are several genes that have been identified that contribute to the development of brain tumors. These genes may be inherited, mutated, or altered. Inherited genetic mutations are passed down from parents to their children. Mutated genes occur due to environmental factors that affect DNA structure. Altered genes occur when the gene is not functioning properly. When these genes are altered, they cause changes in cell reproduction and regulation, which lead to cancerous cells.

  1. Radiation

 Radiation exposure is a main causes of brain tumor. Exposure to radiation causes damage to the DNA, which results in uncontrolled cell division and the formation of cancerous cells. People who live near nuclear power plants, atomic bomb testing sites, and medical facilities are at increased risk of developing brain tumors.

  1. Chemicals

 Chemical exposures pose a significant risk to brain tumor development. Many chemicals are known carcinogens, meaning that they can cause cancer. Examples of chemical carcinogens include benzene, arsenic, asbestos, and tobacco smoke.

  1. Infection

 Infections caused by viruses, bacteria, fungi, parasites, and prions have been linked to brain tumors. Viral infections include herpes simplex virus type 1 (HSV-1), human papillomavirus (HPV), Epstein-Barr Virus (EBV), and cytomegalovirus (CMV). Bacterial infections include Helicobacter pylori (H. pylori) and Mycoplasma pneumonia. Fungal infections include Cryptococcus neoformans and Aspergillus fumigatus. Parasitic infections include malaria and toxoplasmosis. Prion infections include Creutzfeldt-Jakob disease (CJD).

  1. Heavy Metals

 Heavy metals are toxic substances that accumulate in the body over time. Heavy metals can be found in the environment, food, water, air, and soils. Examples of heavy metals include cadmium, chromium, copper, mercury, nickel, and zinc. Environmental toxins including pesticides, herbicides, and industrial pollutants increase the risk of heavy metal poisoning.

  1. Injuries

 Trauma is a leading cause of brain tumors. Traumatic injuries occur when parts of the skull or brain are damaged by external forces. Skull fractures are the most common injury associated with brain tumors. Other types of trauma include intracranial hemorrhage, contusion, and cerebral edema.

  1. Family History

 Family history is a strong indicator of brain tumor risk. If a close family member has had a previous brain tumor, then there is a greater chance that you might develop a brain tumor yourself.


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