Stem Cell & Regenerative · Treatment
O-Shot (PRP Injection) in Seoul: Evidence, Risks and Alternatives
The O-Shot is a branded procedure in which platelet-rich plasma (PRP) made from your own blood is injected into the clitoral area and the front vaginal wall to try to improve arousal, orgasm and mild stress incontinence. Evidence is limited to small, mostly uncontrolled studies, and any effect is temporary. At Somssi Women's Clinic, Dr. Yoon assesses sexual function and pelvic anatomy first, then explains whether PRP, surgery or hormone therapy is the honest fit.
Medically reviewed by Dr. Yoon Ho-joo, MD, PhD, OB/GYN specialist, Somssi Women's Clinic · Last updated October 2026
At a glance
Key facts
The essentials, based on how Somssi Women's Clinic performs this procedure or answers this question. Your plan is confirmed at consultation.
- What is injected: Platelet-rich plasma prepared from your own blood
- Target areas: Clitoral region and anterior (front) vaginal wall near the urethra
- Evidence status: Investigational; small studies, no large randomized trials
- Anesthesia: Topical numbing cream, sometimes with local anesthetic
- Hospital stay: None; office procedure
- Results: Variable; when present, usually fade within a year
- Assessed by: Dr. Yoon Ho-joo, MD, PhD, OB/GYN and sexual-medicine specialist
O-Shot (PRP) at a glance
PRP from your own blood injected at the clitoral area and front vaginal wall; evidence is limited and results vary.
- O-Shot Korea
- PRP injection women
- orgasm shot
- female sexual dysfunction
- PRP for incontinence
- sexual medicine Seoul
- Your own PRPWhat is injected
- InvestigationalEvidence
- Numbing creamAnesthesia
- Fades within a yearResults
- Assess firstSexual function and continence reviewed.
- Draw and spinPlatelet-rich plasma prepared.
- InjectClitoral region and front wall near the urethra.
- Re-evaluateEffects, if any, are usually temporary.
Illustration: Somssi Women's Clinic, Seoul. Schematic, not to scale; your plan is set by Dr. Yoon Ho-joo after examination.
What is the O-Shot?
The O-Shot, short for 'orgasm shot', is a trademarked protocol for injecting platelet-rich plasma into the clitoris and the front wall of the vagina near the urethra. PRP is made by drawing a small amount of your blood, spinning it in a centrifuge to concentrate the platelets, and injecting the platelet-rich layer back into tissue. Platelets release growth factors that are involved in normal wound healing.
The theory is that these growth factors encourage new blood vessels, nerve activity and collagen in the treated area, improving sensitivity, lubrication and the support around the urethra. The theory is plausible. The proof, so far, is thin.
It helps to know what PRP is not. It is not a stem cell product: platelets are cell fragments, not cells, and they do not grow into new tissue. It is not a filler: it adds no lasting volume. And it is not a repair: it does not tighten muscle, shorten a stretched canal or lift a descended uterus. Our guide on stem cell therapy versus PRP unpacks these distinctions.
Somssi Women's Clinic is a surgical gynecology clinic in Gangnam, Seoul, founded in 2000 and led by Dr. Yoon Ho-joo, MD, PhD, who has published and presented on female sexual function for two decades. We take requests for the O-Shot seriously, which means telling you what it can and cannot do.
Who considers a PRP injection?
- Women with reduced clitoral or vaginal sensation, or difficulty reaching orgasm, without a structural cause.
- Women with mild stress urinary incontinence, such as leaking with a cough or sneeze, who want to delay or avoid surgery.
- Women with vaginal dryness or discomfort during intercourse who cannot use estrogen.
- Women who want a low-downtime option before deciding on anything more definitive.
Sexual difficulty is rarely one thing. Low desire, relationship factors, menopause, medication side effects, pain, and anatomical laxity all play a part. Dr. Yoon's 2018 SCI paper studied the characteristics of hypoactive sexual desire disorder in 217 Korean women attending a community gynecology clinic; it is a reminder that desire and orgasm problems need a proper history, not just an injection.
How Somssi approaches PRP and sexual-function requests
Our consultation follows the same structure we use before any intimate procedure. First, a sexual-function interview: desire, arousal and lubrication, clitoral and vaginal orgasm, pain, and any feeling of looseness or air escaping. Second, a pelvic health review with ultrasound of the uterus and ovaries, assessment of stress incontinence and overactive bladder, and measurement of any uterine or vaginal descent. Third, examination of vaginal size and pelvic muscle strength.
This matters for the O-Shot specifically because the front vaginal wall is where the urethra, bladder neck and the sensitive G-spot area sit. In our surgical work we deliberately leave the anterior wall alone to protect these structures, and we apply the same caution to injections there.
If your symptoms come from a wide, thin posterior wall and a descended uterus, PRP will not resolve them. We would then discuss posterior vaginoplasty, which thickens the lower wall with your own tissue and restores pelvic floor support. If your symptoms come from menopausal atrophy, hormone therapy is the better-proven first step; see our menopause treatments. Where PRP is a reasonable option, we offer a plasma-based treatment with clear, written expectations and no branded claims.
Anesthesia, duration and downtime
A PRP session is an office visit. Numbing cream is applied for 15 to 30 minutes, blood is drawn and processed, and the injections take a few minutes. Most women are in and out in under an hour and return to normal activity the same day. There is no hospital stay.
Recovery and timeline
| When | What you can do |
|---|---|
| Same day | Return to work and daily life. Expect mild swelling, a feeling of fullness or light spotting. |
| Days 1 to 3 | Avoid baths, swimming and vigorous exercise. Showering is fine. |
| After about 3 to 7 days | Intercourse is usually permitted once soreness has gone. |
| 3 to 12 weeks | Any change in sensation or leakage is typically reported in this window. |
| 6 to 12 months | Effects, if any, tend to wear off. Repeat injections are commonly proposed. |
Results: what the evidence actually shows
Studies of PRP for female sexual function and stress incontinence are small, frequently without a placebo group, and usually run by clinicians who offer the procedure. Some report improved scores on sexual-function questionnaires or fewer leaks; others show little change. The treated area is also highly responsive to expectation, so a placebo effect cannot be excluded.
No major gynecology or urogynecology body endorses PRP as a standard treatment for sexual dysfunction or incontinence. The responsible position is that it is investigational: it may help some women modestly and temporarily, and it should be priced and presented accordingly. Dr. Yoon will tell you honestly if he does not think it is worth your money.
When the better answer is something else
In the clinic's experience, many women who ask about the O-Shot have a problem that an injection cannot touch. A wide posterior wall that no longer contacts the penis will not feel different because the clitoris was injected. A uterus that has descended two to three centimeters pulls the vagina out of shape regardless of growth factors. Painful sex from a narrowed, atrophic entrance needs dilatation or hormone therapy, not more volume.
Dr. Yoon's 2005 study of colpoperineoplasty and sexual function, and his later conference work on pelvic floor dysfunction and posterior repair, point in one direction: when the structure is restored, sexual function tends to follow. That is why we examine before we inject.
Risks and how we reduce them
- Pain, swelling, bruising and spotting at injection sites for a few days.
- Temporary hypersensitivity or numbness of the clitoris.
- Infection, which is rare with sterile technique and your own blood.
- Urinary urgency or difficulty passing urine for a short time after anterior wall injection.
- Lumps or firmness at injection points.
- No benefit, or a benefit that fades within months.
Because PRP is your own minimally processed blood, the risks are lower than with manufactured cell products. Even so, Korean clinics must follow Ministry of Food and Drug Safety rules on how blood products are prepared. Ask any clinic what kit and process they use and whether anything other than your own plasma is added.
Why international patients choose Somssi
Patients choose us because we are a sexual-medicine clinic first and a procedure provider second. Consultations are in English, we have been a Ministry of Health and Welfare registered institution for foreign patients since 2011, and the clinic sits 100 meters from Gangnam Station Exit 1. Dr. Yoon has presented on female sexual function at ESSM in Vienna and Nice, WAS in Sydney, ISSWSH in San Diego and SMSNA.
Whether you leave with a PRP plan, a surgical plan or simply a clearer understanding of your symptoms, you will leave with honest information. Read how we assess candidates for regenerative treatment, see our international patient information, or contact us to arrange a consultation.
Private consultation
Talk it through with Dr. Yoon's team
English-speaking coordinators, a written treatment plan and a clear quote after your consultation. Same-day discharge for most procedures.
Mon, Tue, Wed, Fri, Sat 09:30–18:00 (KST). Closed Thu, Sun and holidays. 7F Sangkyung Building, 120 Teheran-ro, Gangnam-gu, Seoul.
Dr. Yoon Ho-joo, MD, PhD
OB/GYN specialist, Catholic University of Korea. Founder of Somssi Women's Clinic (2000). Published on female sexual function after reconstructive vaginal surgery; speaker at ESSM, ISSWSH, WAS and SMSNA.
Questions patients ask
Frequently asked questions
Short, honest answers. For anything personal, a consultation is the right place to ask.
Does the O-Shot really improve orgasm?
Some women report stronger or easier orgasms for several months after PRP injection, but the studies are small, mostly uncontrolled and cannot separate the injection from expectation. There is no high-quality evidence that it reliably improves orgasm. We present it as a possible, temporary benefit for selected women, not a guaranteed result.
Can the O-Shot cure stress incontinence?
It may reduce mild leakage for a time in some women by adding bulk around the urethra, but it does not repair the pelvic floor and the effect fades. Pelvic floor exercises are first-line for mild cases. Significant leakage is better assessed for surgical options; see our urinary incontinence treatment page.
How many sessions are needed?
Clinics commonly suggest a single session followed by repeats every year or so, or a short series spaced weeks apart. There is no evidence-based protocol. Needing repeat injections is a signal that the effect is temporary, which should factor into your decision and your budget.
Is PRP safe to inject near the urethra?
Because PRP is your own blood, serious reactions are rare. The front vaginal wall contains the urethra and bladder neck, so technique matters; temporary urgency or difficulty urinating can occur. Dr. Yoon examines this area carefully and avoids treating it when anatomy or symptoms make another approach wiser.
Does Somssi perform the branded O-Shot?
We do not market a trademarked name. We offer a plasma-based treatment where it is a reasonable option after a full sexual-function and pelvic assessment, and we are equally willing to recommend hormone therapy, pelvic floor training or surgery when those are more likely to help.
Will PRP help if my vagina feels loose?
No. A loose or wide vagina is a structural change in muscle and connective tissue, and no injection can tighten it in a lasting way. Our posterior vaginoplasty thickens the lower vaginal wall with your own tissue and restores pelvic floor support under same-day-discharge anesthesia.
Keep reading
Related treatments and guides
- Vaginal Stem Cell Therapy vs PRP: What Is the Difference? — how PRP differs from cell-based products
- Is Vaginal Stem Cell Therapy Proven to Work? — the evidence picture for all regenerative injections
- Is Vaginal Stem Cell Therapy Safe? — risks and regulation in Korea
- How Much Does Vaginal Stem Cell Therapy Cost in Korea? — how quotes are built
- Vaginal Stem Cell Therapy — the broader regenerative category explained
- Urinary Incontinence Treatment — options when leakage is more than mild
- International Patients — how a visit from abroad works
Sources and medical review
- Yoon HJ et al. Characteristics of hypoactive sexual desire disorder in Korean women attending a community gynecology clinic. Journal of Obstetrics and Gynaecology. 2018. DOI 10.1080/01443615.2017.1389866.
- American College of Obstetricians and Gynecologists (ACOG), guidance on female sexual dysfunction and on elective female genital cosmetic procedures.
- International Continence Society (ICS) and International Urogynecological Association (IUGA), terminology and management of stress urinary incontinence.
Next step
A consultation first. A decision only when you are ready.
Tell us what you are experiencing and what you hope to change. Dr. Yoon examines, measures and explains the options, including when no surgery is the right answer. International patients can start with an online consultation before travelling to Seoul.
