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Penile contraction is the poor blood flow to systemic circulation. The reason is that the blood stream is chocked by the PDE5 enzymes and they suppress the cGMP levels. Actually cGMP is responsible for stronger erecrtions and there are many methods and treatments available to raise the blood stream to gentilia. Generally sexual problems as premature ejaculation, introverted ejaculation, less volume of semen, low sperm count etc are caused by the physical and psychological reasons.
Libido is essential in order to have satisfactory sex. But depression, diet and life styles are the general reasons for the loss of libido and some medical disorders also indicate the sign of poor libido. The medical disorders are thyroid problem, tumors and malfunctioning of pituitary gland etc. The possible cause of penile contraction in men includes spinal cord injury intracranial injury, stroke and multiple sclerosis. Around 50%of men with diabetes experience penile contraction problem. Beside these physiological problems also create ercetion problem. They include stress, anxiety and frustration.
Ercetion is a problem that occurs without age factor. In younger men it is due to stress at work place or partial burnt of penis in a fire accident. At the middle age, penile contraction is because of the mental, physical stress and fatigue. At older age the problem comes with the sickness and many older people are usually prone to the kidney related problems, diabetes, thyroid problems and daily life styles habits like smocking and alcohol consumption. To overcome this problem, any anti impotent drugs are been innovated as Viagra, cialis, levitra etc. The names may vary but they all work to reduce the action PDE5 enzymes and help men to attain stronger erection and have a happy intercourse.