By using Circulation Guide you accept these terms. They are written to be read rather than skipped.
What this site is
A general health education resource, published by Tom Biernacki, DPM, FACFAS. It is not medical advice and creates no doctor-patient relationship. The medical disclaimer is part of these terms and is worth reading in full.
Using the content
You are welcome to read, print and share pages for personal use, and to quote short extracts with a link back. Republishing whole pages, or reproducing this content on another site, requires written permission. Text, illustrations and diagrams on this site are the property of their author unless stated otherwise.
What we do not promise
We work from published guidance and cite sources, and we correct errors when we find them or when they are reported. We cannot promise that every page is complete, current with the latest guidance change, or applicable to your situation. Availability of the site is not guaranteed either.
To the extent the law allows, we are not liable for loss arising from reliance on this content. Decisions about your health belong with you and the clinicians who can examine you.
Links to other sites
We link to health organizations and, in future, to retailers. We do not control those sites and a link is not an endorsement of everything on them.
Commercial content
Where product recommendations appear they may earn a commission, disclosed on the page and on the affiliate disclosure page. Purchases are made with the retailer, not with us, and their terms and returns policy govern them.
Contacting us
Contact routes are on the contact page. Please do not send medical histories, wound photographs or urgent clinical questions — those channels are not monitored for urgent matters and are not a way to get care.
Changes
These terms may change; the current version is always the one on this page, with its date. Michigan law governs them.
Published 20 September 2026.