The cause of high blood pressure just waking up may be physiological factors, but also seen in poor sleep quality, sleep apnea syndrome, taking medication for a long interval related. 1. Physiological factors: Normal people’s blood pressure is fluctuating, called the ladle type, the morning is a peak, will be slightly higher than the other time of day blood pressure. 1. Poor sleep quality: If you work night shifts, sleep poorly at night, stay up late, etc., and do not have a good night’s rest, it may cause an increase in blood pressure in the early morning. 2. Sleep apnea syndrome: some obese patients, or have obvious night snoring, nighttime hypoxia, sleep apnea syndrome will cause nighttime blood pressure changes. leading to an increase in blood pressure at night or just after waking up. 3. Drug-related: some patients use short-acting antihypertensive drugs, after a night of metabolism, the drug in the body’s blood concentration is low, can also cause high blood pressure in the morning. If you have high blood pressure in the morning, you should monitor your blood pressure at other times of the day, and if it continues to rise, you should consult a doctor and get treatment according to the doctor’s instructions.