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Any surgery in the brain or spinal cord is serious and carries a certain level of risk. For its complexity, surgeons have to be very careful and work with high precision to prevent complications like bleeding, swelling of brain, infections or response to anesthesia. The risk factor varies according to the size and position of the tumor in the brain. 30% of tumors are often benign and may not require any surgery at all.

Some surgeries can be minimally invasive or may not require any wounds or cuts. For example, radiosurgery involves targeted radiotherapy with Gamma Knife, Cyber knife etc. Many brain tumors for its remote location cannot be operated at all. Removing tumor may also lead to partial loss of brain functions later. It is up to the doctors to determine how much tissue can be removed safely.

1b:T43e,Yes any surgery related to brain is dangerous and one should opt for it only if its the last option.

Surgery may not be a good option in some situations, such as if the tumor is deep within the brain, if it\'s in a part of the brain that can’t be removed, such as the brain stem, or if a person can’t have a major operation for other health reasons because most often, the first step in brain tumor treatment is for the neurosurgeon to remove as much of the tumor as is safe without affecting normal brain function.

Surgery is not very effective against some types of brain tumors, such as lymphomas, although it may be used to get a biopsy for diagnosis.