Research has shown that paraphilias are rarely observed in women. However, there have been some studies on females with paraphilias. Sexual masochism has been found to be the most commonly observed paraphilia in women, with approximately 1 in 20 cases of sexual masochism being female.

Many acknowledge the scarcity of research on female paraphilias. The majority of paraphilia studies are conducted on people who have been convicted of sex crimes. Since the number of male convicted sex offenders far exceeds the number of female convicted sex offenders, research on paraphilic behavior in women is consequently lacking. Some researchers argue that an underrepresentation exists concerning pedophilia in females. Due to the low number of women in studies on pedophilia, most studies are based from "exclusively male samples". This likely underrepresentation may also be attributable to a "societal tendency to dismiss the negative impact of sexual relationships between young boys and adult women". Michele Elliott has done extensive research on child sexual abuse committed by females, publishing the book "Female Sexual Abuse of Children: The Last Taboo" in an attempt to challenge the gender-biased discourse surrounding sex crimes. John Hunsley states that physiological limitations in the study of female sexuality must also be acknowledged when considering research on paraphilias. He states that while a man's sexual arousal can be directly measured from his erection (see penile plethysmograph), a woman's sexual arousal cannot be measured as clearly (see vaginal photoplethysmograph), and therefore research concerning female sexuality is rarely as conclusive as research on men.

The prevalence of fetishism is not known with certainty. The majority of fetishists are male. In a 2011 study, 30% of men reported fetishistic fantasies, and 24.5% had engaged in fetishistic acts. Of those reporting fantasies, 45% said the fetish was intensely sexually arousing. In a 2014 study, 26.3% of women and 27.8% of men acknowledged any fantasies about "having sex with a fetish or non-sexual object". A content analysis of the sample's favorite fantasies found that 14% of the male fantasies involved fetishism (including feet, nonsexual objects, and specific clothing), and 4.7% focused on a specific body part other than feet. None of the women's favorite fantasies had fetishistic themes. Another study found that 28% of men and 11% of women reported fetishistic arousal (including feet, fabrics, and objects "like shoes, gloves, or plush toys"). 18% of men in a 1980 study reported fetishistic fantasies.

Fetishism to the extent that it becomes a disorder appears to be rare, with less than 1% of general psychiatric patients presenting fetishism as their primary problem. It is also uncommon in forensic populations.

Fetishism usually becomes evident during puberty, and may develop prior to that. No cause for fetishism has been conclusively established.

Some explanations invoke classical conditioning. In several experiments, men have been conditioned to show arousal to stimuli like boots, geometric shapes or penny jars by pairing these cues with conventional erotica. According to John Bancroft, conditioning alone cannot explain fetishism, because it does not result in fetishism for most people. He suggests that conditioning combines with some other factor, such as an abnormality in the sexual learning process.

Theories of sexual imprinting propose that humans learn to recognize sexually desirable features and activities during childhood. Fetishism could result when a child is imprinted with an overly narrow or "incorrect" concept of a sex object. Imprinting seems to occur during the child's earliest experiences with arousal and desire, and is based on "an egocentric evaluation of salient reward- or pleasure-related characteristics that differ from one individual to another."

Neurological differences may play a role in some cases. Vilayanur S. Ramachandran observed that the region processing sensory input from the feet lies immediately next to the region processing genital stimulation, and suggested an accidental link between these regions could explain the prevalence of foot fetishism. In one unusual case, an anterior temporal lobectomy relieved an epileptic man's fetish for safety pins.

Various explanations have been put forth for the rarity of female fetishists. Most fetishes are visual in nature, and males are thought to be more sexually sensitive to visual stimuli. Roy Baumeister suggests that male sexuality is unchangeable, except for a brief period in childhood during which fetishism could become established, while female sexuality is fluid throughout life.

Paraphilia (previously known as sexual perversion and sexual deviation) is the experience of intense sexual arousal to atypical objects, situations, fantasies, behaviors, or individuals. Such attraction may be labeled sexual fetishism. No consensus has been found for any precise border between unusual sexual interests and paraphilic ones. There is debate over which, if any, of the paraphilias should be listed in diagnostic manuals, such as the "Diagnostic and Statistical Manual of Mental Disorders" (DSM) or the International Classification of Diseases (ICD).

The number and taxonomy of paraphilia is under debate; one source lists as many as 549 types of paraphilia. The DSM-5 has specific listings for eight paraphilic disorders. Several sub-classifications of the paraphilias have been proposed, and some argue that a fully dimensional, spectrum or complaint-oriented approach would better reflect the evidence.

The following are some of the partialisms commonly found among people:

In 2007, a study was conducted by the University of Bologna on around 5000 fetishist participants to see the prevalence of fetishes. The study analyzed the content inside online fetish communities and found only 669 participants referring to nails, an extension of hand fetishism. This did not refer to fingernails specifically, and the amount of 669 was less than 1% of the participants.

Hand fetishism or hand partialism or also Quirofilia is the sexual fetish for hands. This may include the sexual attraction to a specific area such as the fingers, palm or nails, or the attraction to a specific action performed by the hands; which may otherwise be considered non-sexual—such as washing or drying dishes. This fetish may manifest itself as a desire to experience physical interaction, or as a source of sexual fantasy.

Hand fetishism is recognized by the porn industry; however, it is one of the least common fetishes, despite foot fetishism being the most common.

Hand fetishism is usually based in the biological indication that a partner is healthy and a good potential mate.

As a paraphilia, breast fetishism (also known as mastofact, breast partialism, or mazophilia) is a highly atypical sexual interest focused on female breasts (see partialism). The term "breast fetishism" is also used in the non-paraphilic sense, to refer to cultural attention to female breasts and the sexuality they represent, with debate existing as to whether the modern widespread fascination with breasts among heterosexual males in western societies is a sexual fetish.

Partialism is sexual interest with an exclusive focus on a specific part of the body other than the genitals. Partialism is categorized as a fetishistic disorder in the DSM-5 of the American Psychiatric Association only if it causes significant psychosocial distress for the person or has detrimental effects on important areas of their life. In the DSM-IV, it was considered a separate paraphilia (not otherwise specified), but was merged into fetishistic disorder by the DSM-5. Individuals who exhibit partialism sometimes describe the anatomy of interest to them as having equal or greater erotic attraction for them as do the genitals.

Partialism occurs in heterosexual, bisexual, and homosexual individuals. The foot is considered one of the most common partialisms.

Foot fetishism has been defined as a pronounced sexual interest in feet. Extensions of this fetish include shoes and tickling. Sigmund Freud considered foot binding as a form of fetishism. For a foot fetishist, points of attraction include the shape and size of feet and toes (e.g., long toes, short toes, painted toenails, high arches, soles etc.), jewelry (e.g., toe rings, anklets, etc.), treatments (such as massaging, washing partner's feet or painting partner's toenails), state of dress (barefoot, flip flops, sandals, high heels, hosiery, socked feet, etc.), odor and/or sensory interaction (e.g., rubbing the foot, tickling, smelling, kissing, biting, licking, sucking toes, rubbing genitals on foot, etc.).

Some researchers have hypothesized that foot fetishism increases as a response to epidemics of sexually transmitted diseases. In one study, conducted by Dr. A James Giannini at Ohio State University an increased interest in feet as sexual objects was observed during the great gonorrhea epidemic of twelfth-century Europe, and the syphilis epidemics of the 16th and 19th centuries in Europe. In the same study, the frequency of foot-fetish depictions in pornographic literature was measured over a 30-year interval. An exponential increase was noted during the period of the current AIDS epidemic. In these cases, sexual foot play was viewed as a safe-sex alternative. However, the researchers noted that these epidemics overlapped periods of relative female emancipation. Sexual focus on female feet was also hypothesized to have been a reflection of a more dominant posture of the woman in sexual-social relations. (The first surviving mention of foot fetish is by Bertold of Regensburg in 1220.)

Nose fetishism, nose partialism, or nasophilia is the partialism (or paraphilia) for the nose. This may include the sexual attraction to a specific form of physical variation of appearance (such as shape and size), or a specific area (for example; the bridge or nostrils). The fetish may manifest itself in a desire for actual physical contact and interaction, or specific fantasies such as the desire to penetrate the nostrils.

Other fantasies may include the desire to observe or experience a transformation of a nose with reference to an element of a fictional work such as Pinocchio, or ideas concerning the transformation of the nose into that of another creatures' like a pig's snout as a means of sexually humiliating a partner or acquaintance. These fantasies may be assisted with use of props, role-play or transformation fiction, in the form of writing, artwork, or modified photographs of people (known as morphing).

Sigmund Freud interpreted the nose as a substitute for the penis.

Armpit fetishism (also known as "maschalagnia") is a partialism in which an individual is sexually attracted to armpits - something which may lead to axillism, or armpit intercourse (sexual activity with one or both armpits).

The natural body smell is a powerful force in sexual attraction, and can be focused by the strong pungent odor of the armpit: Alex Comfort considered that for a woman to shave her armpits was “simply ignorant vandalism”, obliterating a powerful sexual tool, and praised the French for greater sexual awareness than American deodorant culture in this regard.

A woman's armpits, armpit hair, and secretions can be seen as essential components of her femininity, whether this is positively or negatively valued. Havelock Ellis found evidence that (in a non-sexual context) smelling one's own armpit could act as a temporary energy boost.

A navel fetishist can be sexually aroused by a variety of stimuli, including key words, thoughts or specific forms of physical interaction with the navel.

Scientists have hypothesized that non-paraphilic sexual attraction to breasts is the result of their function as a secondary sex characteristic. For instance, zoologist and ethologist Desmond Morris theorizes that cleavage is a sexual signal that imitates the image of the cleft between the buttocks, which according to Morris in "The Naked Ape" is also unique to humans, other primates as a rule having much flatter buttocks. Evolutionary psychologists theorize that humans' permanently enlarged breasts, in contrast to other primates' breasts, which only enlarge during ovulation, allows human females to "solicit [human] male attention and investment even when they are not really fertile".

The reverence and theorizing shown to breasts also appears in the science of modern civilization. Breast fetishism is claimed to be an example of a contagious thought (or meme) spreading throughout society, and that breasts are features that have evolved to influence human sexuality rather than serve an exclusive maternal function.

In clinical literature of the 19th century, the sexual focus on breasts was considered a form of paraphillia, but, in modern times, this attraction is considered normal unless it is highly atypical and is therefore a form of partialism.

Technically, hair fetishism is called trichophilia, which comes from the Greek ""trica-"" (τρίχα), which means hair, and the suffix ""-philia"" (φιλία), which means love.

Hair fetishism, also known as hair partialism and trichophilia, is a partialism in which a person sees hair most commonly, head hair as particularly erotic and sexually arousing. Arousal may occur from seeing or touching hair, whether head hair, pubic hair, axillary hair, chest hair or fur. Head-hair arousal may come from seeing or touching very long or short hair, wet hair, certain colors of hair or a particular hairstyle. Pubic hair fetishism is a particular form of hair fetishism.

Haircut fetishism is a related paraphilia in which a person is aroused by having their head hair cut or shaved, by cutting the hair of another, by watching someone get a haircut, or by seeing someone with a shaved head or very short hair.

Some fetishists get a turn-on from touching or rubbing their belly region.

Anthropologists and behaviorists have discovered substantial evidence that the waist-hip ratio (WHR) is a significant measure for female attractiveness, Some find a slender muscular stomach with a defined V-zone to be a turn-on.

Some navel fetishists find physical acts involving the navel to be turn-ons. Physical acts can include licking the navel with the tongue or rubbing body lotion or suntan oil. Some fetishists get a turn-on from pouring drops of champagne, honey, chocolate sauce, whipped cream, etc., into and around the navel and then licking or sucking it up. Similarly, licking or rolling the tongue into the navel while underwater can produce erotic sensations. An ice cube when rubbed over or rested over the navel can produce erotic sensations.

The navel is an erogenous zone with a heightened sensitivity. The navel and the region below when touched by the finger or the tip of the tongue result in the production of erotic sensations, and some people are very ticklish to touch in that area. Some people can be aroused by tickling, lickling, blowing raspberries/zerberts (blowing air with lips), and teasing with a feather, flower or a piece of grass, especially when the person is ticklish in the navel. Fingering the navel is also a common act.

Some prefer to perform navel torture, a series of pain-inflicting acts such as sucking or pulling the navel out (often with a syringe), dripping hot oil or wax into the navel, poking pins into the navel, and stabbing the navel.

This attention is usually directed at a partner's navel, but may include a fixation on the fetishist's own navel.

A sex worker in Turkey stated that some men have attempted to have sexual intercourse by inserting their penis into her navel.