Male Pubococcygeus Muscle and Sexual Function
Yes, males definitively have a pubococcygeus muscle (part of the levator ani muscle group), and it plays an active, essential role in both sexual arousal and orgasm through rhythmic contractions that contribute to ejaculation, orgasmic sensation, and maintenance of erectile rigidity.
Anatomical Presence in Males
The pubococcygeus muscle is clearly present in males as part of the pelvic floor musculature. According to the 2025 AUA guidelines on male chronic pelvic pain, the anterior levator ani muscle (which includes the pubococcygeus) is specifically identified and can be palpated through digital rectal examination at the 5 and 7 o'clock positions 1. This muscle is innervated by the caudal branch of the pelvic nerve and forms a critical component of the male pelvic floor architecture.
Role in Sexual Arousal
The pubococcygeus muscle actively participates in the arousal phase through several mechanisms:
- Erectile support: The muscle contracts to help maintain penile rigidity during erection by compressing venous outflow and supporting increased urethral pressure 2
- Genital blood flow regulation: Pelvic floor muscle activation contributes to increased blood flow to genital structures during arousal 3, 4
- Reflex activity: The muscle exhibits burst activity in response to penile stimulation, demonstrating its integration into the arousal response 2
Research demonstrates that stronger pelvic floor muscles correlate with better arousal function, with the duration of muscle contraction directly correlating with arousal capacity 5.
Role in Orgasm and Ejaculation
The pubococcygeus muscle's role in orgasm is particularly well-established:
- Rhythmic contractions: During orgasm, the muscle undergoes rhythmic contractions that are integral to the orgasmic sensation and ejaculatory process 3, 4
- Ejaculatory function: The muscle exhibits tonic activity during the urethrogenital reflex, which is essential for ejaculation 2
- Urethral pressure modulation: Experimental denervation of this muscle significantly reduces maximal urethral pressure during sexual stimulation and decreases the duration and intensity of the urethrogenital reflex 2
Clinical Implications
Dysfunction Patterns
- Hypotonus (weakness): Weak pelvic floor muscles may negatively impact arousal and orgasmic phases, potentially contributing to erectile dysfunction and ejaculatory disorders 3, 4
- Hypertonus (excessive tension): Overactive pelvic floor muscles can cause sexual pain disorders and contribute to chronic pelvic pain syndrome in men 3, 4
Therapeutic Considerations
Pelvic floor physical therapy targeting the pubococcygeus and related muscles represents a legitimate treatment approach for male sexual dysfunction, including erectile dysfunction and orgasmic/ejaculatory disorders 4. This therapy can strengthen weak muscles or release hypertonic muscles depending on the specific dysfunction pattern.
Neurophysiological Integration
The pubococcygeus functions within a complex neural network involving:
- Sympathetic centers (thoracolumbar spinal cord) for arousal
- Parasympathetic centers (sacral spinal cord) for erectile function
- Somatic motor neurons controlling rhythmic contractions during orgasm
- Pudendal nerve pathways transmitting genital sensation 6
The muscle's activity is not isolated but integrated into the broader sexual response cycle, with dopamine, oxytocin, nitric oxide, and noradrenaline all playing modulatory roles at central and peripheral levels 6.