More than 4 million French people are today treated for diabetes, according to Health Insurance. And several hundred thousand people would be affected without knowing it. However, this metabolic disorder is not limited to blood sugar problems: it can also have direct repercussions on intimate life. Reduced desire, erectile dysfunction, vaginal dryness… Some patients even discover their diabetes after consulting for sexual difficulties. However, the link between excess blood sugar and sexuality still remains largely underestimated.
Why high blood sugar can affect sexuality?
The American Diabetes Association recalls that a glycated hemoglobin (HbA1c) lower than 5.7% is considered normal. Between 5.7% and 6.4%, we speak of prediabetes, while a rate greater than or equal to 6.5% generally indicates diabetes. This indicator allows you to evaluate the average blood sugar level over the last two to three months.
When this blood sugar level remains too high, the walls of the blood vessels gradually weaken. However, the sexual organs – penis, clitoris or vagina – need good blood circulation to function properly. An alteration of this vascularization can thus have a direct impact on sexual desire and performance.
In the shorter term, meals very high in sugar can also play a role. A significant rise in blood sugar followed by a rapid drop can lead to fatigue, drowsiness, irritability or even headaches. A state not conducive to intimate connections. Repeated over time, these sudden variations also promote inflammation and damage the nerves involved in sexual sensations, sometimes making orgasm more difficult to achieve.
Erectile dysfunction, vaginal dryness: the consequences of diabetes in intimacy
In men, several studies reported by the specialized media Healthline show that people with diabetes have an approximately 3.5 times higher risk of suffering from erectile dysfunction. Excess sugar gradually damages the arteries and nerves necessary for erection. Diabetes can also be accompanied by a drop in testosterone levels, particularly in people who are obese.
Research presented at the Endocrine Society meeting also suggests that weight loss associated with GLP-1 agonist treatments could help improve testosterone levels in some men.
In women, insufficiently controlled blood sugar levels can reduce blood flow to the genitals and disrupt hormonal balance. This can result in reduced desire, vaginal dryness or even pain during intercourse, as highlighted by the American Diabetes Association and Healthline.
Another often overlooked consequence: excess sugar promotes imbalances in the vaginal microbiota. It can thus increase the risk of repeated yeast infections and urinary infections, making sexual intercourse uncomfortable or even painful. Symptoms that many women sometimes attribute to age, stress or menopause, without considering a blood sugar problem.
What to do if sugar is disrupting your sex life?
GLP-1 agonist treatments, such as semaglutide, have been developed to treat type 2 diabetes and promote weight loss. Early data suggests that by improving glycemic control and reducing excess weight, they may also have beneficial effects on sexual function.
But specialists point out that treatment begins above all with the adoption of a lifestyle favorable to glycemic balance: practicing regular physical activity, favoring a diet rich in fiber and protein, getting enough sleep and limiting alcohol consumption.
In the event of persistent sexual problems – repeated erectile difficulties, significant drop in lubrication, frequent genital infections or marked reduction in desire – it may be useful to talk to your doctor. A simple blood test including fasting blood sugar and glycated hemoglobin (HbA1c) can sometimes help detect unnoticed prediabetes or diabetes. Appropriate medical support will then allow the most appropriate solutions to be put in place.