There are many things that can cause erectile dysfunction (ED) in young men. These things can be physical, mental, or a mix of the two. Even though ED is more often seen in older men, it can happen to men of any age, even young people. These are some possible reasons why young guys may not be able to get or keep an erection:

Stress, worry, sadness, performance anxiety, and problems in relationships are some of the mental issues that can make it hard for young men to get and keep an erection. Stress from work, school, money problems, or personal relationships can make it harder to get aroused and act sexually. Performance anxiety can happen when you're afraid you won't be able to meet standards or act physically. This can make it hard to get or keep an erection. This can make your worry worse and make your ED symptoms even worse.

Problems in the relationship, like not being able to communicate, fighting, or feeling emotionally close, can make it hard to get or keep an erection. A bad diet, not exercising enough, smoking, drinking too much alcohol, using drugs, and not getting enough sleep can all make it more likely for young men to have problems with their erections.

Some health problems that impact blood flow, hormone levels, or brain function can make it hard for young men to get or keep an erection. Some of these are metabolic syndrome, diabetes, high blood pressure, heart disease, obesity, nerve diseases, hormonal issues, and pelvic accidents or treatments. Some drugs, like antidepressants, antipsychotics, antihypertensives, antihistamines, and medicines for the prostate, can make erectile dysfunction worse or cause it in the first place.