Sexual fetishism or erotic fetishism is a sexual fixation on a nonliving object or nongenital body part. The object of interest is called the fetish; the person who has "a fetish" for that object is a fetishist. A sexual fetish may be regarded as a non-pathological aid to sexual excitement, or as a mental disorder if it causes significant psychosocial distress for the person or has detrimental effects on important areas of their life. Sexual arousal from a particular body part can be further classified as partialism.

While medical definitions restrict the term "sexual fetishism" to objects or body parts, "fetish" can also refer to sexual interest in specific activities in common discourse.

In a review of 48 cases of clinical fetishism, fetishes included clothing (58.3%), rubber and rubber items (22.9%), footwear (14.6%), body parts (14.6%), leather (10.4%), and soft materials or fabrics (6.3%). A 2007 study counted members of Internet discussion groups with the word "fetish" in their name. Of the groups about body parts or features, 47% belonged to groups about feet (foot fetishism), 9% about body fluids, 9% about body size, 7% about hair (hair fetish), and 5% about muscles (muscle worship). Less popular groups focused on navels (navel fetishism), legs, body hair, mouth, and nails, among other things. Of the groups about clothing, 33% belonged to groups about clothes worn on the legs or buttocks (such as stockings or skirts), 32% about footwear (shoe fetishism), 12% about underwear (underwear fetishism), and 9% about whole-body wear such as jackets. Less popular object groups focused on headwear, stethoscopes, wristwear, and diapers (diaper fetishism).

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.

Zoophilia is a paraphilia involving a sexual fixation on non-human animals. Bestiality is cross-species sexual activity between human and non-human animals. The terms are often used interchangeably, but some researchers make a distinction between the attraction (zoophilia) and the act (bestiality).

Although sex with animals is not outlawed in some countries, in most countries, bestiality is illegal under animal abuse laws or laws dealing with buggery or crimes against nature.

A fetish (derived from the French "fétiche"; which comes from the Portuguese "feitiço"; and this in turn from Latin "facticius", "artificial" and "facere", "to make") is an object believed to have supernatural powers, or in particular, a human-made object that has power over others. Essentially, fetishism is the emic attribution of inherent value or powers to an object.

Spectrophilia is sexual attraction to ghosts or sexual arousal from images in mirrors, as well as the phenomenon of sexual encounters between ghosts and humans.

Some people eroticize about intimate examinations as part of a medical fetish, and as such are a common service offered by professional dominants.

An intimate examination can form part of a scene in medical play where the nurse or doctor inflicts one or more embarrassing and humiliating quasi-medical procedures on the patient. Often frozen or heated objects are introduced to the patient's body to simulate the uncomfortable sensations that can occur during a real examination. Examinations may include an examination and intrusion of the anus, urethra, or vagina, as well as handling and twisting of the penis, testicles, clitoris, and nipples. Quite often, strap on play is also incorporated, as this can heighten the intimacy, and also the sensations of the patient. This may be a prelude to masturbation or administration of an enema. Before examination, the patient can be placed in physical restraints and gagged, and wear some form of embarrassing clothing.

Acrotomophilia (from the Greek ἀκρότομος "having the top cut off" (from ἄκρον "akron" "extremity" and -τομος "-tomos" from τέμνω "temno" "I cut") and φιλία "philia" "love") is a paraphilia in which an individual expresses strong sexual interest in amputees. It is a counterpart to "apotemnophilia", the sexual interest in "being" an amputee.

Spectrophilia is a fetish that is classified as the paraphilia in which one is attracted to ghosts or spirits. Spectrophiliacs fantasize about ghosts and often imagine scenarios involving sexual events between themselves or others and spirits.

Medical fetishism refers to a number of sexual fetishes involving objects, practices, environments, and situations of a medical or clinical nature. In sexual roleplay a hospital or medical scene involves the sex partners assuming the roles of doctors, nurses, surgeons and patients to act out specific or general medical fetishes. Medical fantasy is a genre in pornography, though the fantasy may not necessarily involve pornography or sexual activity.

Medical fetishism may involve sexual attraction to respiratory therapy involving oxygen via nasal cannula or any sort of masks, medical practitioners, medical uniforms, hospital gowns, anaesthesia, intimate examinations (such as rectal examination, gynecological examination, urological examination, andrological examination, rectal temperature-taking), catheterization, diapering, enemas, injections, insertion (such as suppository insertion, menstrual-cup insertion, and prostatic massage), medical devices (such as orthopedic casts and orthopedic braces; see also "Abasiophilia"), dental objects (such as dental braces, retainers, and headgear), medical restraints, and medical gags.

Acrotomophiles may be attracted to amputees because they like the way they look or they may view the amputee’s stump as a phallic object which can be used for sexual pleasure.A small number of Acrotomophiles may enjoy the idea of dominating the amputee during couples play and they may also become aroused with the thought of having to take care of an amputee.

Macrophilia is a fascination with or a sexual fantasy involving giants, more commonly expressed as giantesses (female giants). It is typically a male fantasy, with the male playing the "smaller" part—entering, being dominated, or being eaten by the larger woman. Others involve partners who naturally have a significant difference in size.

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.

A hand fetish is a sexual attraction to the hands. This attraction is most commonly expressed with fingering, handjobs, sucking on the fingers and licking the palms. Fingering and Handjobs are an extremely common sexual act, so are not always linked to hand fetishism. However, fingering and handjobs play a major role in hand fetishism.

Fingernail fetishism, a sub-type of hand fetishism is often expressed with scratching with the fingernails and painting the fingernails.

The DSM-IV-TR describes paraphilias as "recurrent, intense sexually arousing fantasies, sexual urges or behaviors generally involving nonhuman objects, the suffering or humiliation of oneself or one's partner, or children or other nonconsenting persons that occur over a period of six months" (criterion A), which "cause clinically significant distress or impairment in social, occupational, or other important areas of functioning" (criterion B). DSM-IV-TR names eight specific paraphilic disorders (exhibitionism, fetishism, frotteurism, pedophilia, sexual masochism, sexual sadism, voyeurism, and transvestic fetishism, plus a residual category, paraphilia—not otherwise specified). Criterion B differs for exhibitionism, frotteurism, and pedophilia to include acting on these urges, and for sadism, acting on these urges with a nonconsenting person. Sexual arousal in association with objects that were designed for sexual purposes is not diagnosable.

Some paraphilias may interfere with the capacity for sexual activity with consenting adult partners.

In the current version of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR), a paraphilia is not diagnosable as a psychiatric disorder unless it causes distress to the individual or harm to others.

Salirophilia is a sexual fetish or paraphilia that involves deriving erotic pleasure from soiling or disheveling the object of one's desire, usually an attractive person. It may involve tearing or damaging their clothing, covering them in mud or filth, or messing their hair or makeup. The fetish does not involve harming or injuring the subject, only their appearance.

It is related to wet and messy fetishism, bukkake, omorashi, mysophilia, urolagnia and coprophilia, but extends to other areas such as forcing the partner to wear torn or poorly fitting clothing and other actions which would render them normally unattractive.

The fetish sometimes manifests itself in the defacing of statues or pictures of attractive people, especially celebrities or fictional characters. It is common to refer to the practice involving ejaculating on a photo as "facepainting". The fetishist finds this sexually exciting, rather than mere vandalism. They sometimes form collections of defaced art for future enjoyment. A video of the fetishist ejaculating on a picture of someone or a photo depicting the result is known colloquially as a "tribute".

The term comes from the French for soiling, "salir". In cases where the fetish is obsessive it is called saliromania. It is frequently confused with salophilia, an attraction to salt or salty things (especially body sweat) that derives from the Latin for salt, "sal".

Boot fetishism is a sexual fetish focused on boots. Boots have become the object of sexual attraction amounting to fetishism for some people and they have become a standard accessory in BDSM scenes (where leather, latex and PVC boots are favoured) and a fashion accessory in music videos. Boots are seen as perhaps the most fetishistic of all footwear and boots may be the most popular fetish clothing attire.

Diaper fetishism, nappy fetishism or diaperism, is a type of garment fetish or paraphilic infantilism. A person with a diaper fetish derives pleasure from the diaper and/or use of it. Being forced to wear diapers as a form of humiliation is sometimes a behavior encountered in sexual masochism.

It is important to note that the diaper fetish community actively opposes and condemns child molesters. Both men and women can practice diaper fetishes, both inside and outside a relationship. As of September 2015, Huffington Post Arts & Culture published an interview on diaper fetishes that was widely regarded as informative within the community. While this clothing fetish is obscure, diaper fetishists engage in the behavior privately or with a partner who shares a mutual interest in the fetish.

BDSM is a variety of often erotic practices or roleplaying involving bondage, discipline, dominance and submission, sadomasochism, and other related interpersonal dynamics. Given the wide range of practices, some of which may be engaged in by people who do not consider themselves as practicing BDSM, inclusion in the BDSM community or subculture is usually dependent upon self-identification and shared experience.

The term "BDSM" is first recorded in a Usenet posting from 1991, and is interpreted as a combination of the abbreviations B/D (Bondage and Discipline), D/s (Dominance and submission), and S/M (Sadism and Masochism). BDSM is now used as a catch-all phrase covering a wide range of activities, forms of interpersonal relationships, and distinct subcultures. BDSM communities generally welcome anyone with a non-normative streak who identifies with the community; this may include cross-dressers, body modification enthusiasts, animal roleplayers, rubber fetishists, and others.

Activities and relationships within a BDSM context are often characterized by the participants taking on complementary, but unequal roles; thus, the idea of informed consent of both the partners is essential. The terms "submissive" and "dominant" are often used to distinguish these roles: the dominant partner ("dom") takes psychological control over the submissive ("sub"). The terms "top" and "bottom" are also used: the top is the instigator of an action while the bottom is the receiver of the action. The two sets of terms are subtly different: for example, someone may choose to act as bottom to another person, for example, by being whipped, purely recreationally, without any implication of being psychologically dominated by them, or a submissive may be ordered to massage their dominant partner. Despite the bottom performing the action and the top receiving they have not necessarily switched roles.

The abbreviations "sub" and "dom" are frequently used instead of "submissive" and "dominant". Sometimes the female-specific terms "mistress", "domme" or "dominatrix" are used to describe a dominant woman, instead of the gender-neutral term "dom". Individuals who can change between top/dominant and bottom/submissive roles—whether from relationship to relationship or within a given relationship—are known as "switches". The precise definition of roles and self-identification is a common subject of debate within the community.

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.

Shoe fetishism is the attribution of attractive sexual qualities to shoes or other footwear as a matter of sexual preference, or an alternative or complement to a relationship with a partner. It has also been known as retifism, after the French novelist Nicolas-Edme Rétif (October 23, 1734–February 2, 1806), also known as Rétif de la Bretonne. Individuals with shoe fetishism can be erotically interested in women's shoes. Although shoes may appear to carry sexual connotations in mainstream culture (for example, women's shoes are commonly sold as being "sexy") this opinion refers to an ethnographic or cultural context, and is likely not intended to be taken literally. Another fetishism, which sometimes is seen as related to shoe fetishism, is boot fetishism.

Diaper lovers vary widely in their focus of attention. There is no singular or archetypical behavior; therefore, a wide range of thought patterns and behaviors exist, but all tends to be a harmless and efficacious release from some kind of pressure.

While wearing diapers, a diaper fetishist generally experiences a comforting feeling. For other diaper fetishists, simply wearing a diaper, the bulky feeling and crinkly noise associated with it, is enough to cause the fetishist a form of erotic pleasure or sexual arousal.

However, most practice their diaper fantasies (i.e. the wearing of diapers) in a way that would probably not be noticed by passersby on the street. Some diaper wearers wear their diapers for limited amounts of time, while others prefer to wear them on a 24-hour, seven-day schedule.

Some are aroused from "wetting" (urination) their diapers, others like "messing" (defecation) their diapers or both. Some do not use the diapers at all (beyond wearing), for arousal, or bladder and bowel movements.

Uniform fetishism is a sexual fetishism where an individual is sexually aroused by uniforms.

Underwear fetishism is a sexual fetishism relating to undergarments, and refers to preoccupation with the sexual excitement of certain types of underwear, including panties, stockings, pantyhose, bras, or other items. Some people experience sexual excitement from wearing, while others get their excitement when observing or handling the underwear worn by another, or watching somebody putting underwear on/taking it off. Some may steal used underwear to get satisfaction. Not only does this include physical contact with the garment(s), or their wearers, but also includes arousal by printed or electronic image with depictions of underwear.

Underwear fetishism is not considered as paraphilia unless it causes distress or serious problems for the person or those associated with them.

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.).