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It depends on the individual. If the male is middle-age or older, it could be caused by restricted blood flow through the Dorsal Artery or any point of blood flow to the Dorsal artery. Blood flow restrictions can be caused by arterial plaque or other physical causes. Diabetes can cause similar erectile dysfunction due to lowered testosterone levels. A man's testosterone level declines about 10% per decade. Symptoms of a lower testosterone level can include a lower libido, impaired sexual function, less energy and drive, and body changes such as reduced muscle mass and physical strength as well as increased body fat, especially around the waist. The incidence of erectile dysfunction that increases with age is partially due to decreasing testosterone level. It can also be related to blood flow restrictions caused by disease processes. For example erectile dysfunction is much higher among diabetics than among non-diabetics.

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14y ago
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Ken Behrendt

Lvl 2
1y ago

The problem could in an ED sufferer's brain. The portions of his brain that respond to testosterone and other sexual stimuli get less responsive with age and then send less neurological signals down to the penile arteries in that result in them dilating and allowing more blood to flow in the sinusoidal chambers of the corpora cavernosa which then produce tumescence hard enough to penetrate a vagina. I'd recommend abstaining from sexual stimulation for a while and also making sure that you are getting plenty of vitamins, minerals, and the amino acids support brain function. Also, if you are taking prescription meds, make sure none of them has ED as side effect. If that does not work, it's time to consider getting an external penile support device like the "Stays-Hard". It will absolutely let you penetrate and continue intercourse as long as you want.

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Anonymous

Lvl 1
3y ago

It get hard but it will get soft fast.

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Q: What causes an erect penis not to be hard enough to penetrate?
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