Erection problems are due to a malfunction of the body's blood circulation. P*nile erection is measured by the amount of blood flowing into the p*nis upon arousal.If the p*nis gets enough blood flow, the p*nis will become s*xually active and when certain reasons restrict the blood flow, the p*nis lacks blood which results in less erection.Therefore, any drug for erectile dysfunction treatment must be able to create perfect and unhindered blood circulation.Cenforce D then does the same as it relaxes the muscles in the lower region of the body, ensuring smooth blood flow through them. So the release of PDE5 (phosphodiesterase type 5) also helps in maintaining a prolonged erection.PDE5 performs the task of returning the p*nis to its position before s*xual activity. Therefore, when the concentration of PDE5 decreases, there is no way to stop the s*xual erection. When a person is stimulated, a massive flow of blood is concentrated in the p*nis. The p*nis will not only become erect but will also remain there after s*xual activity is completed.