Masturbation a few minutes to ejaculate, may be too strong with the stimulation and reproductive system diseases and so on. 1. Too much stimulation: Masturbation is different from sexual intercourse, in masturbation, the hand movement is stronger, the penis will be strongly stimulated. And men can adjust the strength and speed according to their own needs, it is easier to ejaculate. So, it is a normal physiological phenomenon to ejaculate in a few minutes. 2. Reproductive system diseases: masturbation ejaculation in a few minutes, should also consider the possibility of premature ejaculation. This situation may be related to prostatitis, glans penis and long foreskin and other diseases. (1) prostatitis: especially chronic prostatitis, its main symptoms are localized pain, urinary discomfort, and some patients may have impotence, premature ejaculation and other sexual dysfunctions. (2) circumcision: the patient’s foreskin, glans red, swollen, itching and other symptoms, stimulated by inflammation, the patient may also appear premature ejaculation symptoms. (3) Hypercircumcision: the glans is wrapped in the long foreskin for a long time, which makes the glans more sensitive and triggers premature ejaculation. This situation may also be related to other causes. It is recommended to seek medical examination as soon as possible, to be targeted treatment.