Dildo
Dildo is a penetrative sex toy designed to be inserted into the vagina, anus or, less commonly, used orally. Many dildos resemble a penis, but they can also have abstract shapes, curves or specialized bases. Unlike a vibrator, a dildo does not need to vibrate; its main function is to provide pressure, movement and a sense of penetration.
Dildos can be used during female masturbation or partnered sex. They can provide shallow or deep vaginal stimulation, be combined with clitoral stimulation, or be mounted in a harness for penetrative sex.
What does a dildo do?
A dildo mechanically stretches and presses against the tissues of the vaginal entrance and vaginal walls. The exact sensation depends on its width, length, shape, rigidity, movement and the position of the pelvis.
The vagina is not a rigid tube with one fixed size. MRI studies show substantial differences in vaginal shape and dimensions between women, and no single shape describes every vagina.[1]
Sexual arousal also changes the genital tissues. Increased blood flow affects the clitoris, inner labia, vestibular bulbs and vagina, while lubrication can make penetration easier.[2]
A dildo can therefore feel noticeably different at the beginning of arousal than later in the same masturbation or sexual session.
How women use dildos
A dildo does not have to be moved in one simple in-and-out pattern. Women use penetrative stimulation in several different ways.
Shallow penetration
One important form of stimulation occurs close to the vaginal entrance.
A nationally representative U.S. study of 3,017 adult women identified a technique called Shallowing: penetrative stimulation just inside the vaginal opening rather than deep inside. About 84% of respondents reported having used this technique to make vaginal penetration more pleasurable.[3]
A dildo therefore does not need to be inserted to its full length to provide useful stimulation.
Changing the angle
The same study identified Angling, in which a woman changes the position of her pelvis or hips to alter where a penis or toy presses inside the vagina. About 87.5% of respondents reported using this technique.[3]
A curved dildo can produce a similar practical effect by directing pressure toward a particular region, although there is no single angle that is best for every woman.
Rocking instead of thrusting
About 76% of women in the study reported Rocking: keeping a penis or toy relatively deep inside while the base remains in contact with the external genital area, rather than repeatedly withdrawing and reinserting it.[3]
With an appropriately shaped toy, this can combine internal pressure with movement around the clitoris or surrounding vulvar tissue.
Combining penetration with clitoral stimulation
Another technique identified in the study was Pairing: stimulating the clitoris at the same time as vaginal penetration. About 69.7% of participants reported that this made penetration more pleasurable or helped them orgasm more often.[3]
A dildo can therefore function as only one part of masturbation rather than as the complete source of stimulation.
What does a dildo feel like?
The main sensations produced by a dildo can include pressure, fullness, stretching, movement and friction.
Width can strongly affect the feeling around the vaginal entrance. A wider toy generally requires more stretching of the introitus, but larger does not automatically mean more pleasurable.
Length affects which parts of the vaginal canal can be reached. More depth is also not inherently better: the high prevalence of Shallowing in the U.S. probability study shows that stimulation close to the entrance can itself be highly pleasurable.[3]
Rigidity matters as well. A very flexible dildo deforms as pressure is applied, while a rigid device transfers movement more directly to the surrounding tissue.
Surface texture changes the sensation produced by movement. Smooth toys generally produce relatively uniform contact, while raised textures concentrate pressure over smaller areas.
Temperature can also differ between materials. Metal or glass can initially feel cooler than body-temperature silicone, although the toy gradually changes temperature during use.
The subjective response is highly individual. A size, firmness or depth that feels pleasantly full to one woman may feel uncomfortable to another.
Dildos, clitoral stimulation and orgasm
Vaginal penetration can produce sexual pleasure and orgasm, but penetration does not operate independently of the rest of female sexual anatomy.
The clitoris has extensive internal components in addition to its externally visible glans. Genital tissues also interact mechanically during penetration and pelvic movement.
For many women, adding external clitoral stimulation makes dildo use substantially more pleasurable. The Pairing results described above show how commonly women report deliberately combining penetration with clitoral stimulation.[3]
A dildo can therefore be used with fingers or a vibrator on the clitoris. Some toys also combine an internal shaft with an external vibrating or pressure-producing component.
Orgasm does not require insertion to become progressively deeper or faster. The preferred pattern can involve shallow motion, rocking, relatively steady pressure or a combination of internal and external stimulation.
During strong arousal, vaginal lubrication or grool may coat the dildo. After removal, pussy fluids can remain on its surface; the amount of visible fluid does not by itself indicate orgasm intensity.
Dildo size and shape
There is no medically defined ideal dildo size.
Human vaginal dimensions vary substantially. MRI research found considerable inter-individual differences and concluded that no single description characterized normal vaginal shape.[1]
A larger dildo therefore should not be interpreted as inherently more advanced or more satisfying. Comfort depends on anatomy, arousal, lubrication, pelvic-floor relaxation, previous experience and the type of stimulation desired.
A curved shaft can direct pressure differently from a straight shaft. A pronounced head or changes in width likewise alter where pressure is concentrated.
Realistic dildos imitate aspects of penile appearance, including a glans-like tip or surface details. Other dildos deliberately avoid a realistic penis shape and are designed around curves, smooth surfaces or particular types of pressure.
Double-ended dildos allow both ends to be inserted or used in different ways. Strap-on dildos can be mounted in a harness for partnered penetration.
A dildo intended for anal sex requires a different safety feature: it should have a wide flared base or another reliable stop that prevents the whole toy from entering the rectum.[4]
Lubrication, comfort and pain
Lubrication reduces friction between the dildo and genital tissue.
Natural vaginal lubrication may be sufficient, but additional lubricant can be useful when natural lubrication is limited or when prolonged penetration creates uncomfortable friction. A 2025 clinical review concluded that sexual lubricants generally have minimal harms and can improve comfort and sexual well-being, particularly for people experiencing dryness or pain.[5]
Pain should not be treated as something that must simply be overcome by continuing penetration. Sharp pain, persistent burning or bleeding can indicate excessive friction, excessive size, pelvic-floor tension or another problem.
A dildo that feels comfortable when a woman is highly aroused may feel uncomfortable when she is not. This can result from differences in lubrication, vascular engorgement, muscle tension and subjective readiness.
Lubricant compatibility also depends on the toy material. Water-based lubricants are broadly compatible, while some silicone lubricants may damage some silicone toys; manufacturer instructions should be checked.[4]
Materials, cleaning and sharing
Dildos are made from materials including silicone, hard plastics, metal and break-resistant glass. Softer rubber-like materials and blends are also sold, but toy materials differ substantially in porosity, durability and how easily they can be disinfected.
A clinical reference guide for obstetrician-gynecologists recommends nonporous sexual devices because they are easier to clean and disinfect. Porous materials are more difficult to disinfect completely and may also deteriorate with use.[6]
Cleaning depends on the toy material and construction. Manufacturer instructions matter because some toys can tolerate boiling or complete immersion while others contain electronic components, adhesives or materials that require different cleaning methods.
What does sharing a dildo mean?
Sharing a sex toy does not necessarily mean that two people take turns inserting the same dildo into themselves. It can describe several different partnered behaviors.
A mixed-methods study surveyed 800 sexually active women aged 18–35 and interviewed 24 women in more detail. Among women who used sexual enrichment aids such as dildos and vibrators, 31.8% reported sharing them with other people or sexual partners.[7]
The interviews showed that "sharing" covered several distinct situations. A partner might hold and use a dildo or vibrator on the woman without using it on their own body. Two women might use the same toy on each other. A toy might be used non-penetratively between both partners. Some participants also described penetrative toys that could be used on either partner.[7]
The study therefore does not show that 31.8% of women passed the same dildo from one vagina or anus directly to another. The statistic combines multiple forms of partnered toy use.
Sharing in male and female partnerships
Sharing was much more common among women who reported sex with women. Among toy users in this study, 17 of 26 women who had sex with women reported sharing toys, approximately 65%. Among women who had sex with both women and men, 64 of 162 reported sharing, approximately 40%. Among women who reported sex only with men, 120 of 444 reported sharing, approximately 27%.[7]
This makes female-female sexual activity an important context for literal sharing of penetrative toys. In an interview, one woman who had sex with women described using a toy on her partner and having the partner use one on her.[7]
Sharing also occurs in heterosexual sex, but it can mean something different. One woman who reported sex with men described her male partner as the person who often operated the toy while she was the recipient. In that situation the couple was using the same sex toy together, but the man was not necessarily inserting it into himself.[7]
Another participant who had sex with both women and men described a small penetrative toy that she and a male partner could potentially use to penetrate either partner. The study does not state which body site was penetrated in the male partner, so it cannot be used to estimate how often heterosexual men use a shared dildo for anal penetration.[7]
Male anal dildo use is a real sexual behavior, but its prevalence is a separate question and should not be inferred from this study of women.
Why sharing matters for hygiene
A dildo inserted into the vagina can become coated with vaginal and vulvar fluids. A toy inserted anally can acquire intestinal microorganisms. If the same surface is then used on another person or moved from the anus to the vagina, biological material can be transferred with it.
Barrier use was uncommon in the study of 800 women. Of 200 women who shared sex toys and answered the relevant question, only 28 — 14% — reported regularly using condoms on them.[7]
The same study found that 81.8% of toy users reported washing their sexual enrichment aids, most commonly with soap and water.[7] Washing practices nevertheless varied, and participants differed substantially in how much infection risk they believed sex toys presented.
A small experimental study provides direct evidence that genital material can persist on a toy. Twelve women used two vaginally inserted vibrators made from different materials. Among women with vaginal HPV, HPV DNA was frequently detectable on the vibrator immediately after use and sometimes remained detectable after cleaning; persistence differed between the two toy materials.[8]
That experiment demonstrates the potential for contaminated sex toys to act as a route of pathogen transfer, although it did not directly measure transmission from one partner to another.
Condoms and moving a dildo between body sites
Putting a condom over a dildo creates a removable barrier between bodily fluids and the toy surface. When a shared dildo is used on a different partner, replacing the condom reduces transfer of material left from the previous user.[6]
The same principle applies when moving a dildo between body sites. A toy used in the anus should not be inserted directly into the vagina without changing the barrier or appropriately cleaning the toy, because material from the rectal area can otherwise be transferred to the vagina.
Using a barrier does not eliminate every possible infection risk, and proper cleaning remains important. Clinical guidance therefore combines nonporous materials, appropriate cleaning and barrier use when toys are shared.[6]
How common are dildos?
Dildos are established mainstream sex toys, although prevalence estimates vary greatly depending on population and how the question is asked.
A 2019 clinical review summarized U.S. evidence as indicating that nearly one third of women had used a dildo.[6]
A more recent multicenter study of 1,759 adult women with stable partners recruited through private gynecology clinics in Colombia found that 72.76% reported using some type of sex toy, with dildos reported by 53.49% and vibrators by 48.15%.[9]
The Colombian figures should not be treated as worldwide prevalence because the sample came from a specific clinical population. They do, however, illustrate that dildo use is not an unusual or extremely niche sexual behavior.
A representative Australian survey likewise found that women were more likely than men to report sex-toy use, with approximately 21% of women reporting use during the preceding year.[10]
What pornography can make misleading
Pornography often favors very large or visually dramatic dildos because their size is immediately obvious on camera.
That does not demonstrate that unusually large toys are normally preferred or necessary for pleasure. Research on vaginal pleasure instead shows that women commonly use shallow stimulation, pelvic angling and simultaneous clitoral stimulation.[3]
Pornographic scenes can also make very deep or rapid thrusting look like the default way to use a dildo. In real masturbation, a dildo may be moved only a short distance, held relatively still, rocked against the vulva or combined with external stimulation.
A visually large toy also tells little about how much sensation its user experiences. Pleasure depends on stimulation pattern, anatomy and subjective response rather than toy dimensions alone.
Another misleading inference is that using a large dildo permanently makes the vagina "loose." The vagina is distensible tissue, and baseline vaginal size itself varies substantially among women.[1] Ordinary temporary stretching during penetration should not be confused with permanent pelvic-support changes.
Related adult search terms
Related adult and search terms include
- dildo,
- dildo sex toy,
- dildo masturbation,
- dildo in pussy,
- pussy dildo,
- vaginal dildo,
- realistic dildo,
- big dildo,
- small dildo,
- glass dildo,
- silicone dildo,
- curved dildo,
- strap-on dildo,
- double dildo,
- dildo penetration,
- and woman using dildo.
See also
References
- ↑ 1,1 1,2 1,3 Barnhart KT, Izquierdo A, Pretorius ES, Shera DM, Shabbout M, Shaunik A. Baseline dimensions of the human vagina. Human Reproduction, 2006. PubMed
- ↑ Suh DD, Yang CC, Cao Y, Heiman JR, Garland PA, Maravilla KR. MRI of female genital and pelvic organs during sexual arousal. Journal of Psychosomatic Obstetrics & Gynecology, 2004. PubMed
- ↑ 3,1 3,2 3,3 3,4 3,5 3,6 3,7 Hensel DJ, von Hippel CD, Lapage CC, Perkins RH. Women's techniques for making vaginal penetration more pleasurable: Results from a nationally representative study of adult women in the United States. PLOS ONE, 2021. PubMed
- ↑ 4,1 4,2 Planned Parenthood. Sex Toys. Planned Parenthood
- ↑ Vanderschee R, Kostov S. Approach to lubricant use for sexual activity. Canadian Family Physician, 2025. PubMed
- ↑ 6,1 6,2 6,3 6,4 Rubin ES, Deshpande NA, Vasquez PJ, Spadt SK. A Clinical Reference Guide on Sexual Devices for Obstetrician-Gynecologists. Obstetrics & Gynecology, 2019. PubMed
- ↑ 7,1 7,2 7,3 7,4 7,5 7,6 7,7 7,8 Collar AL, Fuentes JE, Rishel Brakey H, Frietze KM. Sexual Enrichment Aids: A Mixed Methods Study Evaluating Use, Hygiene, and Risk Perception among Women. Journal of Sex Research, 2022. PubMed
- ↑ Anderson TA, Schick V, Herbenick D, Dodge B, Fortenberry JD. A study of human papillomavirus on vaginally inserted sex toys, before and after cleaning, among women who have sex with women and men. Sexually Transmitted Infections, 2014. PubMed
- ↑ Prevalence and characterization of the use of erotic toys in Colombian women. 2025. PubMed
- ↑ Richters J, de Visser RO, Badcock PB, et al. Masturbation, paying for sex, and other sexual activities: the Second Australian Study of Health and Relationships. Sexual Health, 2014. PubMed