Same-Day Medical Certificates in Japan: When It's Possible and When It Isn't
A same-day medical certificate (shindansho) is often possible in Japan, including on a first visit, but only when the doctor who examines you that day can already reach a diagnosis. When the diagnosis isn't clear yet, or the document you need is an official benefit form rather than a simple note, the paperwork takes longer. For what a shindansho is and how to request one, see our medical certificate guide; this article is about timing.
Can you get a shindansho on the day you are examined?
Yes, if the examination that day supports a diagnosis. Two rules in Japan's Medical Practitioners' Act shape the timing:
- A doctor may not issue a medical certificate without personally examining you (Article 20). Because a certificate cannot be issued without an examination, the document can only come from a doctor who actually saw you that day.
- A doctor who has examined you must not refuse a requested certificate without justifiable grounds (Article 19).
In practice, that means a same-day certificate is realistic when the clinical picture is already clear at the end of the consultation: for example, adjustment disorder with an identifiable workplace stressor. Many clinics can then write a short certificate stating the diagnosis and a recommended rest period during or shortly after the visit.
One legal caution: the law obliges issuance, but it sets no deadline. "Same day" is common practice for simple certificates, not a legal entitlement, and clinics differ in how they handle paperwork.
When is a same-day certificate not realistic?
When the doctor cannot yet state a diagnosis in writing. A shindansho is a formal medical document; a doctor who signs one is certifying its contents. Same-day issuance tends not to happen when:
- The diagnosis needs observation over more than one visit, such as distinguishing a temporary stress reaction from a depressive illness. The certificate then comes at the follow-up instead.
- The requested content goes beyond the findings. A certificate reflects what the doctor diagnosed, not the wording an employer asks for.
- The request concerns a period before any examination. Certification is tied to examination, so documenting an illness the doctor never saw is inherently limited.
None of this means the request failed. It usually means the certificate arrives at the second visit instead of the first.
Does the type of document change the timeline?
Yes, and this is the biggest factor after diagnosis. "Medical certificate" covers documents on very different tracks:
- A private certificate for your employer has no fixed format. This is the document most people mean by "same day," and the one covered above. If the goal is sick leave, our guide to mental health leave in Japan explains how the certificate fits into the kyushoku process.
- The Injury and Sickness Allowance (shobyo teate-kin) claim form is not a shindansho at all: the doctor's section certifies a period in which you were unable to work under their care, so it follows treatment over time rather than being produced at a first encounter.
- The Jiritsu Shien Iryo (subsidized psychiatric care) application uses a designated diagnosis form submitted to your municipal office, with details that vary by prefecture; see our Jiritsu Shien Iryo guide.
If you need one of the official forms, ask the clinic how long that specific document takes rather than assuming the same-day pattern applies.
What should you do if the doctor says "not today"?
Ask which of the three usual reasons applies, because each has a different next step:
- The diagnosis isn't established yet. Ask what the doctor needs to see and when to return; a concrete revisit date means delayed, not refused.
- The document is a designated form. Ask the expected preparation time and whether anything from your employer or city office is needed first.
- The requested wording doesn't match the findings. Ask what the doctor can state; a narrower certificate the doctor can sign beats a broader one they can't.
If you haven't been seen anywhere yet, book the earliest appointment you can and raise the certificate at the start of the consultation, not the end, so the doctor examines you with the document in mind. What to bring and how the visit runs is covered in your first visit to a psychiatrist in Japan.
Frequently asked questions
This article is general information, not medical advice for your individual situation. If you need a certificate, the starting point is an examination with a doctor.
Medically reviewed by our psychiatrist (M.D.). Updated August 15, 2026.