Weak erections are medically called as erectile dysfunction which is treated as sexual dysfunction in males. There can be many underlying causes of weak erections or erectile dysfunction as normal erections in males involve series of activities which depend upon person’s physical and psychological health for proper execution. Normal male erection occurs when blood flows in to sponge like tissues present in male organ covered by a chamber called corpus cavernosa. When brain passes signals to the nerves, the chamber holding sponge like tissues, corpus cavernosa, relaxes, allowing the blood to flow in which is absorbed by the tissues to stiffen the male sex organ for intromission. The duration of stiffness depends upon the duration for which blood stays in the spongy tissues, after ejaculation blood starts receding and male sex organs looses its stiffness and returns to its normal size.
Any disease, ailment or malfunctioning of nerves, muscles and blood carrying vessels can hinder this process to cause erectile dysfunction. Apart from these physical reasons psychological reasons also play their part in causing weak erections. Normally male sex organ does not hold similar stiffness during entire sexual act, initially it is not as hard as it gets while approaching orgasm, basically weak erection is where male sex organ does not achieve sufficient stiffness to penetrate or looses its stiffness to continue the act, before orgasm, in a short duration which is not long enough to satisfy his partner.
Diabetes mellitus causes weak erections in up to 50% of diabetic males, excess sugar present in the blood can block blood carrying vessels and can also numb the nerves to cause weak erections. Other diseases related to cardio-vascular system, neurological disorders, atherosclerosis, multiple sclerosis and problems related to prostrate gland, kidney and liver can cause weak erections. It is considered that these diseases with diabetes constitute 70% of total complaints of erectile dysfunction.
With the growing age people tend to develop the problem of erectile dysfunction due to weakening of nervous and cardio-vascular system, which is natural. Surgeries and treatments like chemotherapy can also cause ED. Sedatives, tranquilizers, medicines for high blood pressures and anti-depressants can also cause erectile dysfunction however change in the medicine can resolve this situation if there are no other complications. Hormonal imbalance which causes lack of testosterone hormone, a vital hormone for male sexual functions, causes weak erections and even no erection at all. Injuries to spine, brain, groin area and nutritional problems have also been found to be responsible for erectile dysfunction.
Psychological factors like performance anxiety where male gets too anxious to perform well in bed and gets psychologically distressed which cause further episodes of failures. Stress can also cause erectile dysfunction as it is difficult for a male to get aroused when he is stressed out. Strained relationship with the partner also takes away fun and pleasure from the act to cause weak erections. Alcoholism, smoking and too much caffeine can also cause erectile dysfunction as these habits prevent sound sleep which hinders the recovery process of the body to cause problems related to erections in the long run.