What Is a Speculum? Types, Parts & Uses

Last verified: October 6, 2026. A speculum is an instrument that gently holds open a body passage or opening so that a clinician can see inside it. The word is Latin for mirror or looking-glass, and the name has stuck even though modern specula are mostly about creating an unobstructed view. Specula come in several forms for different parts of the body and are used in primary care, women’s health, ear-nose-throat care, dentistry, and veterinary medicine. This guide explains what a speculum is, its main types and materials, how it differs from related instruments, and what supply managers should know.

What Is a Speculum?

A speculum is a hand-held tool with a part that is inserted into a body opening and a means of widening that opening a little, either by spreading two blades apart or by providing a rigid funnel-shaped tube. Its purpose is to hold tissue out of the way so that light can reach inside and the area can be seen and, when needed, worked on with other instruments. It does not cut, grasp, or treat by itself. It provides access and visibility.

Although many people associate the word with one particular examination, the term covers a family of related devices.

Why It Exists: The Problem a Speculum Solves

Many body passages are naturally collapsed, with their walls touching one another, or are narrow and curved. A clinician cannot see inside simply by looking. A speculum gently holds the walls apart and supports a clear line of sight, which allows examination, sampling, or minor procedures to be performed with better visibility and control. The shape of each speculum is chosen to match the anatomy it is designed for.

Who Uses a Speculum

Gynecologists, family physicians, nurse practitioners, midwives, and women’s-health clinicians use the vaginal type during examinations and screening. Ear-nose-throat specialists and general clinicians use ear and nasal types. Dentists and oral surgeons use mouth and cheek retractors that perform a related role. Veterinarians use animal-specific versions. Researchers in reproductive health, infectious disease, and animal studies may use speculums under an approved protocol to collect samples or visualize tissue. Because speculum examinations can be uncomfortable or sensitive for patients, clinicians choose sizes and materials with comfort in mind, and training emphasizes communication.

Types of Speculums

• Vaginal speculum — usually has two blades that open to allow a view of the vaginal canal and the cervix. Common designs differ in blade shape and size, with options for different anatomies and for patients who have a narrower opening. Blade styles vary, with some narrower or longer than others.
• Ear speculum — a small funnel-shaped tip, often attached to an otoscope, that holds the outer ear canal open and guides light toward the eardrum.
• Nasal speculum — a small two-bladed device that gently spreads the nostril to allow a view of the inside of the nose.
• Rectal or anal speculum (anoscope-type devices) — tube-shaped or bladed devices for viewing the lower end of the digestive tract.
• Eye speculum (lid speculum) — a small, wire-like device that holds the eyelids open during eye procedures.
• Veterinary specula — proportioned for animals, including larger versions for mouth or other examinations.

By material and reusability

• Disposable plastic speculums are made for a single patient and then discarded. They are widely used because they avoid cleaning and reprocessing and are lightweight. Some include a built-in light channel or are designed to work with an attached light source.
• Reusable metal speculums are generally stainless steel and are cleaned and sterilized between patients, often in an autoclave or by another approved method. They are durable and may be cooler or warmer to the touch, depending on handling, which is a comfort consideration for some clinics.
• Lighted and video-enabled options are available for several types. They add a built-in light or camera to improve visibility and allow images to be recorded or shown on a screen.

How a Speculum Differs from Related Instruments

• Speculum vs. retractor — a retractor holds tissue back during surgery, often for a longer time and in a larger area. A speculum is generally designed for a natural opening and for examination or brief procedures.
• Speculum vs. endoscope — an endoscope is a slender instrument with its own camera and light that travels deeper into the body. A speculum opens a short passage so that a separate light or the clinician’s eye can see in.
• Speculum vs. forceps — forceps grasp or hold tissue and objects. A speculum widens an opening. The two are often used together.
• Speculum vs. otoscope — the “speculum” of an otoscope is the disposable tip, while the otoscope as a whole includes the light and lens.
• Speculum vs. dilator — a dilator is used to stretch an opening progressively, whereas a speculum holds it open for viewing.

Practical Relevance for Research Administration and Procurement

• Disposable vs. reusable economics. Disposable units have a recurring cost and generate waste, while reusable metal units cost more up front and require staffing and equipment for reprocessing. Programs weigh these along with infection-control policy, volume, and storage.
• Size range. Clinics usually need several sizes of each type so that the clinician can choose the most suitable one. Stocking only a single size is a common supply problem.
• Sterile vs. non-sterile. Some specula are provided as sterile packs and others as clean, non-sterile items. The CASRAI guide to sterile vs. non-sterile purchasing helps clarify which is suitable for which use.
• Accessories. Many exams require a light source, gloves, lubricant where appropriate, and sampling supplies. Procurement staff often build these into a single exam kit.
• Waste handling. Used instruments may count as regulated medical waste depending on local rules and contamination. Check the facility’s policy.
• Patient comfort and training. Design features, such as smaller or lighted models, may be selected to improve comfort. Clinical staff and patient-experience teams are good sources for what is actually used.

Common Misconceptions and Practical Notes

The word speculum is most often associated with one kind of examination, which can lead to the misconception that it is a single instrument. In practice it is a category, and ear, nasal, eye, and other types look very different from each other. Another misconception is that metal is always better than plastic or the reverse. Each has advantages: metal is durable and reusable, while plastic avoids reprocessing and can include a lighted channel. Which is better depends on volume, policy, and preference.

It is also commonly assumed that the instrument itself causes the discomfort some patients report. Comfort depends on several factors, including the size chosen, how the exam is explained, how the device is handled, and the patient’s own circumstances. For this reason, clinics often stock a range of sizes, and clinical teams are trained to communicate throughout the examination. From a supply standpoint, offering options and feedback channels is a low-cost way to improve the patient experience.

For reusable instruments, the full cycle is cleaning, inspection, packaging, sterilization, storage, and tracking. A missed step can compromise the whole cycle, so reprocessing areas usually follow written procedures and keep records. Disposable instruments simplify that cycle, but waste handling then becomes the main logistic concern.

Storage matters too. Disposable units are bulky for their weight, so clinics with limited cabinet space often track par levels by size to avoid running out of one size while overstocking another. Packaging, expiry dates on sterile packs, and clear labelling of sizes on shelves reduce errors at the point of use, and periodic stock reviews help clinics notice which sizes are actually used.

The Short Version

A speculum is an instrument that gently holds open a body opening so it can be examined. The best known type is the vaginal speculum, but ear, nasal, rectal, and eye versions all follow the same idea. Specula can be disposable plastic or reusable metal, and many are available in several sizes and with lighting. They are access tools, not cutting or grasping tools.

This page offers general information only. It is not clinical or safety training. Always follow your institution’s procedures and the manufacturer’s instructions for any specific instrument.

Frequently Asked Questions

What is a speculum used for?

A speculum is used to hold a body opening or passage open so that a clinician can see inside, for examination, sampling, or minor procedures.

Are there different kinds of speculums?

Yes. There are vaginal, ear, nasal, rectal, and eye types, among others, and each is shaped for the area it is meant for. Veterinary versions are also available.

What is the difference between a plastic and a metal speculum?

Plastic speculums are usually disposable, made for one patient, and discarded. Metal speculums are reusable and are cleaned and sterilized between patients according to the facility’s procedures.

Is the ear speculum the same as an otoscope?

No. The ear speculum is the small tip that goes into the ear. An otoscope is the full instrument, which includes a light and a magnifying lens along with the tip.

Does a speculum treat anything?

No. It provides access and visibility. Any sampling or treatment is done with other instruments through the opening it creates.

Why do clinics stock several speculum sizes?

Anatomy varies from person to person, so having a range of sizes lets the clinician choose the most suitable and comfortable option.