How long does it take for a brain tumor to appear?

A long time. From the time a brain cancer first starts to the time it becomes large enough to cause symptoms, usually takes years. Brain tumors are typically found when they cause neurologic symptoms.
Years, often. Unfortunately, many patients don't show symptoms and get a diagnosis of a brain tumor until the tumor is quite large, and clearly has been there for many years.

Related Questions

How long does it take for a brain tumor to grow large?

Depends. For more benign tumors such as meningioma, many years. For malignant brain tumors such as glioblastoma, a few months. Read more...
Brain tumor. This is an extremely complex question. Brain tumors come in many different types and based on the cell origin can be extremely slow growing taking years to become large and symptomatic versus the more malignant which can double in size in a matter of months. Read more...

How long is it supposed to it take for a brain tumor to grow and cause symptoms?

Depends on type. The type and grade of the tumor will determine the growth rate. If the brain tumor is benign, it may grow slowly for months to years before causing symptoms (ie. Meningioma). If the tumor is malignant or aggressive, it will grow rapidly over about 6-12 weeks. Manifestation of symptoms depends on location. If it is adjacent to areas that control movement or speech, the symptoms are seen sooner. Read more...

How long does it take to diagnose a brain tumor and what are usually the first signs?

Variable. Primary (start in the brain) brain tumors are rare. Time and symptoms depend on the type of tumor, and where it develops. Low grade tumors are more common in the young, are slower growing and can take years to diagnose. High grade tumors are more common in adults, grow quickly and cause symptoms in weeks to months. Symptoms depend on part of brain. Most common are headaches, nausea, seizures. Read more...
Diagnosing brain tum. The top three symptoms are headache, vomiting, and personality changes. Unfortunately, those are also common to many other diagnoses. Once medically concerned, an MRI is the test of choice, and the diagnosis can rapidly be made. Read more...

How long does it take for a malignant brain tumor to develop?

Actually`. Some believe that it takes only the time for a SINGLE CELL which has MUTATED (or produced by an abnormal strand of RNA/DNA to START tumor formation. As to how long it takes for SYMPTOMS to occur THAT depends upon the LOCATION of the TUMOR and whether it IRRITATES surrounding tissue ("produces" a siezure) Hope this helps! Dr Z. Read more...

How long does it take on average for a brain tumor to grow? Years? Months? Days? Mri over about 13 months ago was normal.

Variable. Different type of tumors have different growth rates. If MRI was normal about a year ago, unless there has been a drastic change in symptoms, it is unlikely that you have a brain tumor. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Drink enough water daily so that your urine is mostly colorless. Practice safe sex. Read more...

Long can it take to discover a brain tumor if present?

Variable. There are silent areas of the brain. Tumors may develop in these areas and not show symptoms for years. Important regions of the brain will show symptoms immediately. The important issue is to identify symptoms as early as possible and then use the appropriate imaging method to look for a tumor. Index of suspicion must come first, then the imaging will be of more value. Read more...