Cerebral blood clots, also known as brain thrombosis or embolism, occur when a blood clot blocks a cerebral blood vessel, interrupting blood flow and potentially leading to a stroke or other serious complications. If left untreated, this condition can be fatal. Fortunately, the body may give advance warning through certain signs – not always obvious – that can appear up to several weeks before a stroke occurs. Here are 9 warning signs to look out for:
1. Sudden Intense Headache
Cerebral blood clots can cause sudden, unusual headaches that appear without warning. This pain can last for hours despite the use of painkillers and is a serious sign that requires immediate medical attention.

2. Weakness or Paralysis on One Side of the Body
You may experience sudden weakness or numbness in your arm, leg, or face, particularly on one side of your body. This is a classic symptom of a stroke caused by a blood clot, making movement and daily activities difficult.
3. Speech Difficulty
Suddenly speaking with a lisp, slurring your speech, or having difficulty understanding others’ speech can be related to a brain blood clot. You may find it challenging to express yourself or understand words while remaining conscious.
4. Vision Problems
You may experience blurred vision, double vision, or temporary loss of vision in one or both eyes. These symptoms typically occur suddenly and may accompany other neurological signs, indicating interrupted blood flow to the brain.
5. Loss of Balance or Coordination
Feeling dizzy, unsteady, or like everything is spinning can be due to a blood clot. This is dangerous as it increases the risk of injury and indicates an acute neurological issue.
6. Disorientation or Cognitive Impairment
You may suddenly feel confused, unable to comprehend simple sentences, follow conversations, or recognize familiar people. This indicates severe oxygen deprivation in the brain and requires immediate intervention.
7. Fainting
Severe blood clots in the brain can cause sudden unconsciousness. This is a medical emergency requiring immediate attention to prevent irreversible brain damage.
8. Seizures
Some people experience their first seizure due to a blood clot. Seizures are sudden, uncontrolled electrical disturbances in the brain, resulting in loss of consciousness or unusual movements.
9. Nausea
Feeling nauseous or vomiting without an apparent cause, especially when accompanied by neurological symptoms, could be due to increased pressure or stimulation in the brain. Do not ignore this symptom.
If you or someone you know exhibits any of these signs, seek medical help immediately. Cerebral blood clots are a medical emergency, and early intervention is crucial to prevent severe consequences.