Insomnia is not a precursor to a brain tumor.
Insomnia is a common sleep disorder, which refers to a subjective experience of dissatisfaction with sleep duration and/or sleep quality despite appropriate sleep opportunities and sleep environment, and affects daytime social functioning.
The causes of insomnia are very complex, both physiological factors, but also environmental factors, psychological factors, disease factors and so on. For example, sudden changes in the sleeping environment, bright light, noise, etc. may affect sleep, but also during menopause, night sweating and hot flashes often affect sleep, and insomnia often occurs during pregnancy.
And insomnia caused by diseases is not necessarily brain tumor, common ones are high blood pressure, cerebral infarction, migraine, anxiety disorder and so on.
When brain tumor occurs, some patients may not have uncomfortable symptoms, while some patients may have headache and dizziness, nausea and vomiting, and some patients may have mental disorder or sleep disorder, or even language or physical dysfunction.
Therefore, insomnia is not necessarily a brain tumor. If there is any discomfort, it is recommended to identify the cause of the disease in time so as to target the treatment.