If there is no sexual dysfunction, the penis can be made firm through sexual stimulation. If you suffer from sexual dysfunction, you need to take general measures, medication, surgery and so on. Making the penis firm requires appropriate measures according to the specific situation and cannot be generalized. Usually, for people who are healthy and do not have sexual dysfunction, the penis can be made firm through normal sexual stimulation methods, such as masturbation and sexual intercourse. Usually need to pay more attention to rest, reasonable arrangement of sexual life time. For patients with sexual dysfunction, you need to cooperate with the doctor to take cognitive-behavioral therapy, stop using any drugs that may cause sexual dysfunction. At the same time, you can follow the doctor’s instructions to apply sildenafil, tadalafil and other phosphodiesterase 5 inhibitors, as well as glutamine, vitamin B12 and other nutritious nerve drugs, as well as phenylephrine, meshoxylamine and other sympathetic nerve drugs. Specific medications should be chosen as prescribed by the physician. If drug treatment is ineffective, we need to consider surgical treatments such as penile cavernous shunt and penile cavernous decompression, which to a certain extent can effectively improve the situation of penile dysfunction. All in all, if there is sexual dysfunction, you need to go to the hospital in time, cooperate with the doctor active treatment.