Cerebral blood clots, also known as cerebral thrombosis or embolism, occur when a blood clot blocks a blood vessel in the brain, 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 be aware of:
1. Sudden severe headache
Cerebral blood clots can cause sudden, unusual headaches that appear without warning. This pain can last for hours, even with pain relief medication, 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 the body. This is a classic symptom of a stroke caused by a blood clot and can make daily activities and movement difficult.
3. Speech difficulties
Suddenly speaking with a lisp, slurring words, or having trouble understanding others’ speech may be related to a cerebral blood clot. You might find it challenging to express yourself or comprehend speech, despite being awake and alert.
4. Vision problems
You may experience blurred vision, double vision, or temporary loss of sight 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 might suddenly feel confused, unable to understand simple sentences, follow conversations, or recognize familiar people. This indicates severe oxygen deprivation in the brain and requires immediate medical intervention.
7. Fainting
Severe blood clots can cause sudden loss of consciousness. This is an emergency situation that requires immediate medical 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. Don’t ignore this sign.
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.