Urology
July 30, 2026
5 min read

What is Selective Dorsal Nerve Modulation (SDN)?

Op. Dr. Fettah Tosun

Op. Dr. Fettah Tosun

Üroloji Uzmanı

While medications, fillers, and sprays provide temporary relief in the treatment of premature ejaculation, microsurgical methods come into play for patients seeking a permanent solution. Selective Dorsal Nerve Modulation (SDN) is one of the most modern microsurgical techniques aimed at permanently eliminating hypersensitivity in the penis.

How Does the SDN Method Work?

In many men experiencing premature ejaculation, the number of branching dorsal nerves carrying sensation to the penis is significantly higher than normal. This causes the glans penis to send excessive stimulation to the brain even with minimal contact, leading to premature ejaculation. In Selective Dorsal Nerve Modulation, these overly branched sensory nerve fibers are selectively identified and modulated using microsurgical techniques. The objective of this method is not to completely remove sensation, but to bring hypersensitivity back within normal limits.

Permanent Treatment for Premature Ejaculation

By eliminating the lifelong dependence on medication, this procedure provides patients with comfort and sexual confidence. Clinical evaluations show that successful and permanent results are achieved with the SDN method, particularly in patients with primary (lifelong) premature ejaculation who have not responded to other treatments.

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What is Selective Dorsal Nerve Modulation (SDN)? | Op. Dr. Fettah Tosun Blog