Sexual dysfunction and infertility are common problems following spinal cord injury. Most men with complete spinal cord lesions do not ejaculate during coitus. Vibratory stimulation applied to the frenulum of the penis in six quadriplegic male subjects produced ejaculates for intrauterine inseminations. Pregnancies occurred in five of the six partners. Vibratory stimulation is a relatively safe and effective means to produce an ejaculation in men with quadriplegia.