Diabetes also can affect the blood vessels, leading to ED. In addition, a condition called diabetic neuropathy which involves damage to the nerves and may cause orgasm without ejaculation.
In men, diabetes can lead to a hardening and narrowing of the blood vessels that supply the erectile tissue of the penis. This can cause problems in getting an erection, and the penis may be less firm while erect.
In women, diabetes can lead to hardening of the blood vessels of the vaginal wall. Decreased blood flow can affect vaginal lubrication, causing the vagina to be too dry for comfortable intercourse. This condition also seems to put women at greater risk for recurring yeast infections.
For people with diabetes, the first step in treating sexual dysfunction is to control their blood glucose levels. When the diabetes is well-controlled, there is a decreased risk for many complications, including sex-related problems.