Will it work if prostate stimulation feels like nothing? | Pleasure is not guaranteed [OK Prostate Chip]

This page is based on entries from "ok-lab's diary" (https://ok-lab.hatenablog.com/), the Japanese development diary written by Mr. Okada, founder of OK Lab, a small company in Japan (Okada Comfortable Life Laboratory). Only the entries about "whether the chip works when prostate stimulation brings no pleasure" are summarized here, in order of publication. Past prices and sizes are as written at the time. Current prices come from the official product list (retrieved September 4, 2026). Quotations are translated from Japanese.

---

Note: This page is a personal reading log by someone with no connection to the maker or the seller. It reflects the source entries as of their publication dates and makes no guarantee of accuracy or safety. The product is not a medical device; talk to a doctor about any health decision. Check the official site for current information. This page contains advertising.

In short

• One customer reporting prostate numbness experienced other sensations, but no lasting return of prostate pleasure.
• Mr. Okada suggests vibration for low sensitivity, while expressly declining to guarantee effects.
• The current list includes a plain vibrating chip, but does not confirm the historical custom build.

If you see blood in your urine, even a small amount or for the first time, do not wait and see. See a urologist right away. If you suddenly cannot urinate, or the device cannot be removed, do not try to fix it yourself. Go to a medical facility, including emergency care, immediately.

---

About this product

The OK Prostate Chip is a small device that is placed in the urethra (the urine passage) so that it acts on the prostate; the maker sells it in several shapes, sizes and materials. It is made and sold by OK Lab (Okada Comfortable Life Laboratory), a small company in Japan, through its own online store, and prices are in Japanese yen (JPY). The maker's development diary, "ok-lab's diary", is written in Japanese. This page is an English summary of it, and every quotation is translated. OK Lab ships internationally, so readers outside Japan can order (see "Buying from outside Japan" below). Product names on this page are plain-English descriptions. The official Japanese product name is shown once in the product table so you can find the same item in the store.

---

Before you read: key terms

---

What happens: no pleasure from prostate stimulation

The OK Prostate Chip is a small urethral device intended to press outward within the prostate region, according to the maker. This topic concerns prostate numbness: the lack of sensation or sexual pleasure described by a customer testing whether the chip could produce a response. The entries discuss ordinary chips and motor-powered versions for stimulation in that region, alongside reports of other sensations that customers distinguished from prostate pleasure.

Prostate numbness persisted despite a larger custom chip and other sensations

In an entry published in January 2018, a customer tested remaining sensitivity with a custom short chip about 1cm longer than usual. Only the first use brought mild arousal, with weak sensation and little sexual pleasure. Afterward, even direct pressure from the larger replacement brought no prostate sensation, while prolonged wear brought surrounding fatigue.

The customer still perceived a sensation likened to vaginal penetration and regarded it as separate from prostate sensitivity. Combined anal stimulation produced more frequent, larger releases of semen without pleasure, which the customer attributed to pressure rather than restored sensitivity. Mr. Okada advises treating the account as an individual experience because bodies and sexual sensations differ.

(Source: ok-lab's diary, published January 2018)
https://ok-lab.hatenablog.com/entry/20180118/1516263011

Mr. Okada revised his explanation for reports of no refractory period

An entry published in August 2018 discusses the refractory period (the drop in desire after ejaculation) in relation to the chip. Its added note attributes post-ejaculation tiredness to prolactin (a hormone), presenting this as the accepted explanation at that time. Mr. Okada accepted a reader's advice to revise the explanation accordingly.

(Source: ok-lab's diary, published August 2018)
https://ok-lab.hatenablog.com/entry/20180818/1534566487

One customer reporting no refractory period also described bleeding after custom chip use

In an entry published in August 2018, a customer described an initial pleasurable sensation followed by nothing further from the chip alone. During ordinary masturbation, that customer later reported unusually strong pleasure, repeated climaxes, and no usual loss of desire despite semen release. These were personal reports; the customer was not described as having the same history of lost sensitivity as the January correspondent.

The customer preferred a glass pair but reported bleeding on first use of a custom 2-chip screw-shaped glass design. The diary does not record whether that bleeding was medically assessed. Mr. Okada cautions that the linked glass screw design might be unsuitable.

(Source: ok-lab's diary, published August 2018)
https://ok-lab.hatenablog.com/entry/20180825/1535182626

Weak prostate stimulation prompted one customer to favor length over flexibility

A separate customer in the entry published in August 2018 preferred a long chip and sought repeated small internal sensations. That customer believed the base transmitted movement from surrounding muscles, rather than simply providing greater internal pressure. The screw-shaped pair, in that account, felt too flexible to produce the desired stimulation.

The customer also praised the shaped stimulation chip, nicknamed the Awakening chip, and proposed a name suggesting ignition. Mr. Okada replied that his own experience had been less striking. His response was to await further customer reactions before accepting that stronger description.

(Source: ok-lab's diary, published August 2018)
https://ok-lab.hatenablog.com/entry/20180825/1535182626

A vibrating chip for prostate numbness launched with revised cable spacing

In an entry published in March 2020, Mr. Okada introduced a twisted-cable vibrating chip, initially offered as a custom build. The published price was ¥3,000 (about $19 at ¥156 = $1, rate as of 2026-09-04), with a switched 3V battery box instead of the plain model's 1.5v box. He described the cable design as an inexpensive way to improve stability.

The updated entry gives 3.5cm as the revised standard spacing between the chip and cable twist. An 8mm motor was standard; 10mm was available by request, with a USB connection (an optional power connection) costing an additional ¥500 (about $3 at ¥156 = $1, rate as of 2026-09-04). Mr. Okada recommended the USB option for customers who already owned a portable battery.

(Source: ok-lab's diary, published March 2020)
https://ok-lab.hatenablog.com/entry/2020/03/07/152901

---

The maker's answer to no pleasure from prostate stimulation

Mr. Okada proposes different stimulation, including vibration, but the diary offers no guarantee that lost prostate pleasure will return.

Bleeding accompanied attempts to address prostate numbness with repeated use

The January 2018 report's injury account describes visible blood on the chip and mild pain after repeated use, followed by clearly visible blood in semen. Mr. Okada explains that he had selected glass and resin while seeking surfaces gentler on the urethra. His response favored shorter initial exposure because he considered friction unavoidable.

The diary does not record a medical assessment of these injuries or a confirmed recovery of sensitivity. Mr. Okada also discouraged polishing misshapen resin, saying it could create microscopic scratches.

(Source: ok-lab's diary, published January 2018)
https://ok-lab.hatenablog.com/entry/20180118/1516263011

Vibration for prostate numbness remained an expectation without a recorded outcome

In the entry published in March 2020, Mr. Okada says ordinary chips may offer little effect without an existing capacity for prostate pleasure. He contrasts this with physical vibration, which he expects to stimulate tissue around the prostate even when prostate sensation is absent. That expectation concerns stimulation around the gland; the entry records no customer result showing restored sexual sensation.

The same entry mentions possible headaches in especially sensitive people and discomfort associated with prolonged cable contact. Mr. Okada presents the vibrating design as an alternative for people who obtain little response from ordinary chips.

(Source: ok-lab's diary, published March 2020)
https://ok-lab.hatenablog.com/entry/2020/03/07/152901

Advice for no prostate pleasure came with an explicit absence of guarantees

In an entry published in July 2021, Mr. Okada presents instructions that discuss larger or more stimulating shapes when users feel nothing. Those suggestions accompany his description of the products as novelty or joke goods at that time. The text expressly states that their claimed effects are not guaranteed.

The same instructions also mention combined anal stimulation as a response to low sensitivity. Mr. Okada cautions against combining the chip with an anal prostate massage device because of a possible strong shock.

(Source: ok-lab's diary, published July 2021)
https://ok-lab.hatenablog.com/entry/2021/07/24/125923

If you see blood in your urine, even a small amount or for the first time, do not wait and see. See a urologist right away. If you suddenly cannot urinate, or the device cannot be removed, do not try to fix it yourself. Go to a medical facility, including emergency care, immediately.

---

How no pleasure from prostate stimulation changed over time

---

OK Prostate Chip products related to no pleasure from prostate stimulation

The current list includes named products discussed in these entries, without confirming the historical custom designs.

Products that appear in these entries

(Source: ok-lab's diary, published August 2018)
https://ok-lab.hatenablog.com/entry/20180825/1535182626

(Source: ok-lab's diary, published March 2020)
https://ok-lab.hatenablog.com/entry/2020/03/07/152901

Products the diary mentioned as alternatives

The diary names no alternative.

Other historical descriptions include the enlarged short chip, zero-spacing pair, glass pair, long chip, custom glass screw pair, and twisted-cable vibrating model. No matching product can be confirmed on the current list.

---

Common worries about no pleasure from prostate stimulation

The customer reports separate questions about sensation, retrieval, and orgasm, with different answers for each.

"Can a chip get stuck despite no prostate pleasure?"

In the January 2018 report's retrieval account, the customer described painful, unsuccessful removal using the retrieval thread (the cord attached for retrieval). The customer reported that the chip had only come out during urination or ejaculation. Mr. Okada agreed with the customer's suspicion of thread pressure against the urethral wall, but no medical confirmation is recorded.

He suggested a linked pair with zero spacing between chips. The diary does not record whether that proposed alternative resolved the problem.

(Source: ok-lab's diary, published January 2018)
https://ok-lab.hatenablog.com/entry/20180118/1516263011

"What if prostate numbness accompanies an inadequate retrieval thread?"

The January 2018 customer also requested a longer retrieval thread because the listed maximum of 25cm was insufficient in that case. The customer found sensations from an auxiliary chip more noticeable than those from the main chip and wanted to avoid that distraction. An editorial note says a thread length could then be specified in the order comments.

The diary does not record how a longer thread felt in use. Mr. Okada's response provided a way to request a different length, without documenting a return of prostate pleasure.

(Source: ok-lab's diary, published January 2018)
https://ok-lab.hatenablog.com/entry/20180118/1516263011

"Does no refractory period mean a dry orgasm?"

The August 2018 customer who reported repeated climaxes expressed uncertainty about how to label the experience. That account included semen release, whereas the July 2021 text defines a dry orgasm (orgasm without ejaculation) by the absence of ejaculation. The diary's definition therefore distinguishes orgasm type from whether sexual desire drops afterward. Mr. Okada's July 2021 explanation limits its dry-orgasm claim to people with good prostate sensitivity.

(Source: ok-lab's diary, published August 2018)
https://ok-lab.hatenablog.com/entry/20180825/1535182626

(Source: ok-lab's diary, published July 2021)
https://ok-lab.hatenablog.com/entry/2021/07/24/125923

---

Buying from outside Japan

OK Lab ships internationally to countries covered by Japan Post's EMS courier service. Overseas orders are paid in advance by PayPal. Each order carries a ¥400 (about $3 at ¥156 = $1, rate as of 2026-09-04) handling fee, and EMS shipping is charged on top. These terms come from OK Lab's official sales-terms page (written here as plain text, not a link: ok-lab.net/docs/law), checked on September 7, 2026; confirm them on the official store before you order, because they can change.

---

Summary of this article

---

Source: ok-lab's diary (Okada Comfortable Life Laboratory). The original entries are in Japanese; quotations on this page are translated. Photos and videos are on the original entries.