A blood pressure reading of 138/87 is generally considered slightly elevated, falling within the Stage 1 hypertension range. While not immediately alarming, consistent readings in this range warrant attention and lifestyle adjustments. High blood pressure can increase the risk of heart disease, stroke, and kidney problems. Monitoring your blood pressure regularly, adopting a healthy diet, exercising, and managing stress can help lower your blood pressure. Consult with your doctor to determine the best course of action for your specific situation.