An erection every morning is a normal physiological phenomenon, belonging to the morning erection. Morning erections are usually caused by holding in urine, thicker blankets at night, or sexual stimulation at night. The erection will disappear automatically after urinating. If you want to reduce the degree of erection, you can try to drink less water two hours before going to bed. Morning erections every day are not harmful to the body and are not a cause for concern. If you have an erection once in a while, it is normal. However, if you don’t have an erection for a long time, it is a sign of a disease in your body.