How long does it take to become a Mohs technician?

You can start working as a paid trainee right away with a high school diploma. Becoming a certified histotechnician, HT(ASCP), usually takes about 2 to 3 years of college credits and experience while you work.

Not to start. You need 60 semester hours or an associate degree with biology and chemistry for HT(ASCP), and college science credits before you can gross or map tissue.

Is a Mohs technician the same as a Mohs surgical assistant?

No. The Mohs technician works in the lab preparing slides. A surgical assistant or medical assistant helps the surgeon with the patient.

Is there a Mohs tech school?

There is no dedicated Mohs degree. People train on the job, through histotechnology programs, or through short Mohs courses for working techs.

How to become a Mohs technician

By the Mohs Pros teamLast updated October 10, 2026

There are two ways in: start as a paid trainee with a high school diploma, or move over from general histology. Either way, the long-term goal is HT(ASCP) certification.

What a Mohs technician does

During Mohs surgery the surgeon removes skin cancer one layer at a time. Between layers, the Mohs tech freezes the tissue, cuts it into thin sections on a cryostat, stains the slides and hands them back so the surgeon can see whether any cancer remains at the edges. Read more in what a Mohs technician does.

Path 1: no experience

Have a high school diploma or equivalent.
Join as a paid trainee and learn embedding, cutting and staining.
Work in Mohs labs once the lab director signs off on your competency.
Add college science credits, then sit for HT(ASCP).

Path 2: from general histology

Bring your histology experience, ideally including frozen sections.
Learn the Mohs workflow: tissue orientation, speed between stages, working beside the surgeon.
Apply to experienced Mohs tech roles.

Requirements at a glance

To	You need
Start as a trainee	High school diploma, documented training, competency sign-off
Gross, map or ink tissue	CLIA testing-personnel education: an associate degree in a lab science, or 60 semester hours with chemistry and biology
Earn HT(ASCP)	60 semester hours with biology and chemistry, plus a year of broad histology experience
Work in NY, NV or PR	A state histotech license (check physician-lab exemptions)

Skills that matter

Steady, precise hands for cutting sections a few microns thin
Speed without shortcuts: patients wait between stages
Care with labeling and orientation, so the surgeon knows exactly where each slide came from
Reliability and calm communication with the surgical team

Frequently asked questions

How long does it take to become a Mohs technician?: You can start working as a paid trainee right away with a high school diploma. Becoming a certified histotechnician, HT(ASCP), usually takes about 2 to 3 years of college credits and experience while you work.
Do I need a degree?: Not to start. You need 60 semester hours or an associate degree with biology and chemistry for HT(ASCP), and college science credits before you can gross or map tissue.
Is a Mohs technician the same as a Mohs surgical assistant?: No. The Mohs technician works in the lab preparing slides. A surgical assistant or medical assistant helps the surgeon with the patient.
Is there a Mohs tech school?: There is no dedicated Mohs degree. People train on the job, through histotechnology programs, or through short Mohs courses for working techs.