Editorial notes.

What you are reading

These are original introductory articles written for this publication. They explain practical questions and decision methods. They are not adapted copies of another publisher’s articles, clinical recommendations, firsthand product tests, or medically reviewed material.

Health information

For general sexual health information and links to established health resources, visit MedlinePlus: Sexual Health, published by the U.S. National Library of Medicine. For a personal health concern, consult a qualified clinician. For a specific product, consult the manufacturer’s current manual.

Photography

Images are editorial illustrations of everyday spaces, nature, and objects. They do not identify customers, imply a health condition, or endorse a product.

• Tall granite cliffs rising above a valley. Original Unsplash image.
• A minimal chair and desk that show their proportions clearly. Original Unsplash image.
• A close study of fern shapes and textures. Original Unsplash image.

Source provider: Unsplash. See the Unsplash license and terms. Keep these source records with the site.

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