Heart rate 90/min is normal?

Heart rate 90 beats/min is generally considered normal.

Adults in quiet, awake state heart rate normal range is 60-100 beats/min, heart rate 90 beats/min in the normal range, so it is normal, no special treatment. If the heart rate exceeds 100 beats/min, it may be related to strenuous exercise, tight excessive tension and other non-disease factors, may also be caused by disease factors, such as hyperthyroidism, arrhythmia, myocarditis, etc. If the heart rate is lower than 60 beats/min, it may be related to long-term exercise, or it may be caused by disease factors such as cardiomyopathy and heart failure.

When the patient has abnormal heart rate, he should go to the hospital for relevant examinations to clarify the cause, such as hormone level measurement, ECG, etc.