The size of the penis is determined by innate factors, and cannot be enlarged and thickened by acquired equipment and external factors, but only through the acquired exercise and medication to improve the blood supply, to play a certain strengthening effect. In daily life, you can exercise, such as running, swimming, hiking, etc., exercise, enhance physical fitness, exercise body muscles, play a certain improvement in blood supply, strengthen the effect of the penis. If the male sexual dysfunction caused by erectile dysfunction, penis is too small, you can take sildenafil by taking sildenafil, suitable for the treatment of erectile dysfunction role, allergies are contraindicated, adverse reactions include gastrointestinal reactions, etc., the above drugs need to be used under the guidance of a doctor.