sentence: Average measurements are applied.
sentences_before: The size depends on arousal level, time of day, room temperature, frequency of sexual activity, and unreliability of the measurement methods.
sentences_after: The length is measured along the top, from the base to the tip with the man standing and the penis held parallel to the floor. Self-measurements report a higher average length than those which used medical or scientific methods. Doctors induce erection or stretch the flaccid penis as far as possible. Flaccid length is not a reliable indication of erect length.
concept_name: average measurement
headings: Human penis size
categories: Male reproductive system