Sexual dysfunction is any physical or psychological problem that prevents you or your partner from getting sexual satisfaction. Male sexual dysfunction is a common health problem affecting men of all ages, but is more common with increasing age. Treatment can often help men suffering from sexual dysfunction. Sexual dysfunction is any physical or psychological problem that prevents you or your partner from getting sexual satisfaction. Male sexual dysfunction is a common health problem affecting men of all ages, but is more common with increasing age. Treatment can often help men suffering from sexual dysfunction.