A tingling feeling in the scalp or head, by itself, is not a common sign of a blood clot in the brain. When a clot affects brain circulation, it more often causes sudden, noticeable symptoms like a very severe headache, weakness, trouble speaking, or vision changes.
Blood clots in the brain can act like a stroke by blocking blood flow, which may quickly affect movement, speech, balance, or sensation. Tingling or numbness is more concerning when it comes on suddenly and is paired with other neurologic changes, especially on one side of the body. Read more about stroke symptoms and how they can present.
Scalp tingling has many non-clot causes, including problems that irritate the nerves or skin of the scalp. It may also happen alongside certain headaches or inflammation conditions, and it can come with symptoms like scalp tenderness or itching.
If tingling appears with a sudden severe headache, facial droop, confusion, trouble speaking, weakness, or new vision changes, it should be treated as an emergency. A neurologist is usually the right specialist for evaluation, and self-medicating to “thin the blood” is not safe without medical guidance. Keeping blood pressure and other risk factors under control is an important prevention step.