Understanding Hard Flaccid Syndrome and How Pelvic Floor Dry Needling May Help

Hard Flaccid Syndrome (HFS) is a condition that affects the penis and pelvic area. It is not caused by infection or hormones but by muscle tension and nerve problems in the pelvic floor. Common symptoms include a firm or semi-rigid penis when not aroused, pain, numbness, burning, and changes in sensitivity or function. These symptoms often get worse with stress, sitting, or exercise.

While research is still growing, HFS is now understood to be closely linked to pelvic floor dysfunction. If you’ve been diagnosed with Hard Flaccid Syndrome, you’re not alone—and there are options to help.

hard flaccid syndrome

What Is Hard Flaccid Syndrome?

Hard Flaccid Syndrome is a functional condition that affects the nerves, blood flow, and muscles in the pelvic area. Many men report:

  • A semi-hard penis while flaccid
  • Pain or burning in the penis, perineum, or pelvic floor
  • Numbness or changes in ejaculation
  • Worse symptoms when sitting or during physical activity

This condition is often caused by tight pelvic floor muscles, which can press on nearby nerves and blood vessels. Stress, overuse, poor posture, and trauma may also play a role.

How the Pelvic Floor Affects Penile Function

The pelvic floor is a group of muscles that support the bladder, rectum, and sexual organs. These include the bulbospongiosus, levator ani, and obturator internus muscles. When they become too tight, they can affect blood flow and nerve function to the penis.

Men with HFS may have trouble relaxing these muscles, which causes pain and tension. This tension can reduce circulation, trap nerves like the pudendal or dorsal penile nerve, and lead to a cycle of discomfort and stress.

Fascia, Nerve Compression, and Circulation

Another piece of the puzzle is fascia—a type of connective tissue around muscles. In HFS, tight fascia in the pelvic or abdominal wall can limit blood return and squeeze nerves. This may cause burning, numbness, and that “full” feeling in the penis.

This can also cause central sensitization, a nervous system condition where the brain becomes more sensitive to pain signals, even after the original injury has healed.

How Pelvic Floor Dry Needling Can Help

Dry needling is a treatment that uses thin, sterile needles to release tight muscle knots (trigger points). It can reach deep muscles in the pelvic floor, such as the levator ani and obturator internus, that are hard to treat with other methods.

Dry needling may help:

  • Reduce pelvic floor muscle tension
  • Improve blood flow to the penis and perineum
  • Calm overactive pain signals
  • Improve urinary and sexual function

In a case study, dry needling helped a man with severe pelvic floor tension and urinary frequency. After 10 sessions, he improved from urinating every 30 minutes to 6–8 times a day, with results lasting for 3 months.¹

Another clinical study showed that dry needling reduced central pain sensitivity and improved mood and function in patients with pelvic pain.²

And in men with chronic pelvic pain, combining dry needling with relaxation techniques reduced pain in over 80% of participants.³

Whole-Person Care for HFS

At our clinic, we take a full-body, trauma-informed approach to treating Hard Flaccid Syndrome. Every treatment plan is tailored to your symptoms and goals and may include:

  • Dry needling of the pelvic floor and hip muscles
  • Breathing and posture retraining
  • Acupuncture to calm the nervous system
  • Coordination with physical therapists or urologists as needed

Our goal is to restore balance to the nervous system, muscles, and circulation so your body can begin to heal.

Book an Appointment Today

If you’re diagnosed with and dealing with Hard Flaccid Syndrome, there are real, body-based solutions available. Pelvic floor dry needling is a non-surgical, non-medication approach that can reduce pain and improve quality of life. You don’t have to suffer in silence—help is here.

References

  1. Rahbarian M, Rezasoltani Z, Dadarkhah A, et al. Dry Needling in Myofascial Tracks in Non-Relaxing Pelvic Floor Dysfunction: A Case Report. J Bodyw Mov Ther. 2018;22(3):574-578. doi:10.1016/j.jbmt.2017.05.019.
  2. Khoshbin M, Ghamkhar L, Arab AM, et al. Effect of Dry Needling on Pain and Central Sensitization in Women with Chronic Pelvic Pain: A Randomized Controlled Trial. Pain Pract. 2024. doi:10.1111/papr.13495.
  3. Anderson RU, Wise D, Sawyer T, Chan CA. Integration of Myofascial Trigger Point Release and Paradoxical Relaxation Training for Chronic Pelvic Pain in Men. J Urol. 2005;174(1):155-160. doi:10.1097/01.ju.0000161607.76154.38.

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118 W. 72nd, Rear Lobby, Upper West Side, NY 10023 Evidence-based acupuncture and dry needling on the Upper West Side, NYC. From chronic pain, headaches, and pelvic floor dysfunction, Dr. Jordan Barber integrates the highest level of training with compassionate care to help you thrive. Disclaimer: This site does not provide medical advice. Always consult a qualified healthcare professional before making changes to your health. Read our full disclaimer

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