The first time you are not able to get up, it may be due to psychological factors, prostatitis, penile abnormality, endocrine factors and other reasons. 1. psychological factors: the most important is the mental psychological factors, due to the first time with the lack of knowledge of sexual life, can lead to a more nervous mood or excessive excitement, thus appearing to have a hard time with the situation. 2. Prostatitis: Due to prolonged lower urinary tract infections, bacteria, viruses and other substances can make urine reflux, causing prostatitis. There may be pain in the surrounding tissues, which can lead to a hard-on during the first intercourse. 3. Penile abnormality: due to the existence of penile trauma, penile curvature and other penile structure problems, may lead to insufficient blood supply to the penis, affecting the normal erection, so there is a situation that can not get hard during coitus. 4. Endocrine factors: if there are pituitary tumors, testicular hypoplasia, etc., may make gonadal hypogonadism, affecting libido and sexual ability, so the first time you can’t get up. The first time you can’t get up may also be caused by other reasons, it is recommended that the patient timely consultation and examination, to clarify the cause of the disease and treatment, so as not to delay the condition.