Cerebral blood clots, also known as cerebral 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 provide warning signs — not always obvious — that can appear weeks before a stroke occurs. Here are 9 warning signs to watch out for:

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 symptom that requires immediate medical attention.

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2. Weakness or paralysis on one side of the body

You may experience sudden weakness or numbness in your arm, leg, or face, especially 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 difficulties

Suddenly speaking with a lisp, slurring words, or having difficulty 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 conscious.

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 may 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 suggests that your brain is severely oxygen-deprived and requires immediate medical intervention.

7. Fainting

Severe blood clots can cause sudden loss of consciousness. This is an emergency situation requiring 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 abnormal 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.