What Causes High Blood Pressure At Night?

Posted on Wed, 28 May 2014

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Wed, 28 May 2014 Answered on

Tue, 17 Jun 2014 Last reviewed on

Question : What would cause my blood pressure to go extremely high at night and be completely normal in daytime. I am not taking any medication

Answered by Dr. Shehzad Topiwala (3 hours later)

Brief Answer:
Blood pressure

Detailed Answer:
May I please know the readings that you get for your blood pressure.

If there are indeed big vacillations then a couple conditions need to be ruled out such as:

1 Thyroid problems

2 Pheochromocytoma

These two can be screened for a simple, non fasting blood test for

1 TSH

2 Plasma fractionated metanephrines

Further there are neurological conditions that are associated with fluctuations in blood pressure , such as autonomic dysfunction. A formal in person assessment by a neurologist is useful in this matter

Note: For further queries related to coronary artery disease and prevention, click here.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar