China Medical Visa: S1 vs S2, and When You Don't Need One at All
The short answer
If you are going to China for medical treatment, you apply under the S category — not the tourist visa most people assume.
Which S visa depends on one number: how many days you will stay.
| Your stay | Visa | Why |
|---|---|---|
| 30 days or less (and you’re from a visa-free country) | No visa needed | Check first — this is the case most people miss |
| 180 days or less | S2 | Single stay up to 180 days |
| More than 180 days | S1 | Must convert to a residence permit after arrival |
There is also a fourth path — the L tourist visa — that people use and that we recommend against. We’ll explain why at the end.
First: check whether you need a visa at all
This is the step most guides skip, because telling you that you don’t need their help doesn’t sell anything.
As of 2026, China has unilateral visa-free entry for ordinary passport holders from a long list of countries — the count has been reported at 77 countries and rising through 2025–2026 — typically for stays of 30 days.
For medical travellers, that covers more ground than you’d think:
- A health checkup — typically 1–2 days. Visa-free is fine.
- A specialist consultation plus imaging — typically 3–7 days. Visa-free is fine.
- Outpatient treatment with a short course — often fits.
- Dental work, eye procedures, most TCM courses under 30 days — usually fits.
Source: Chinese visa-free policy announcements, National Immigration Administration, 2025–2026. Country lists change frequently — verify your nationality before booking.
⚠️ The hard limit is 30 days, and it is not extendable in practice. If anything runs long — a complication, a delayed lab result, a doctor who wants to see you again in three weeks — you are out of status. That is an immigration offence, not a paperwork problem.
If there is any realistic chance your stay extends, apply for the S2 instead. The visa fee is cheaper than the consequences.
S2: the standard medical visa
This is what you apply for if your treatment fits inside 180 days.
| S2 | |
|---|---|
| Purpose | Short-term private affairs, including medical treatment |
| Maximum stay per entry | 180 days |
| Validity of the visa | Commonly 3 months to 1 year for first-time applicants; longer for applicants with a clean travel history |
| Entries | Single, double, or multiple — depends on your consulate and your documents |
| Processing time | Roughly 4–7 business days, plus document-gathering time |
| Fee | Roughly USD 140–185, varying by nationality and number of entries |
The detail that matters most: the annotation
An S2 issued for medical purposes should carry a “medical treatment” (诊疗) notation.
This is not cosmetic. Two consequences:
- At the border, it tells the officer your purpose is legitimate and documented.
- Later, if you need to extend your stay, the annotation is the foundation of that application. An S2 without it is much harder to extend for medical reasons.
What to do: when you apply, state the medical purpose explicitly and supply the hospital letter. Do not let your application be filed as a generic private visit.
Documents you will need
| Document | Notes |
|---|---|
| Passport | 6+ months validity, at least 2 blank pages |
| Visa application form + photo | Standard form, white background, sized to consulate spec |
| Hospital invitation or admission letter | The critical document — see below |
| Medical diagnosis summary | From your treating doctor at home |
| Proof of financial capacity | Bank statement; one guide recommends showing ~120% of the estimated treatment cost |
| Proof of kinship (for companions) | Notarized |
| Travel insurance covering China | Often requested; strongly advisable regardless |
Requirements vary by consulate and nationality. Verify with the Chinese embassy or visa application service center in your country. No article — including this one — can give you a definitive list for your passport.
The hospital letter is the whole ballgame
Ask the hospital: “Will you issue a medical treatment certificate and an invitation letter for my visa application?”
Some hospitals do this routinely. Some don’t know how. Some will only do it after a deposit.
Without that letter, the S2 pathway closes. We have seen patients book flights before confirming this. Don’t be one of them.
What the letter should state: your identifying information, the diagnosis or reason for treatment, the proposed treatment plan, the estimated treatment duration, and the estimated cost. A letter that says only “we confirm this patient has an appointment” is often rejected.
S1: for treatment longer than 180 days
S1 is the same category as S2, but for stays exceeding 180 days. It’s used for long chemotherapy protocols, extended rehabilitation, bone marrow transplant recovery, and similar.
| S1 | |
|---|---|
| Purpose | Long-term private affairs, including medical treatment |
| Stay | More than 180 days |
| After arrival | You must obtain a private-affairs residence permit from the local immigration authority within 30 days of entry |
| Health certificate | Often required, and the medical exam generally must be done in China, not at home |
The 30-day residence permit step is not optional and not a formality. Miss it and you are in the country without valid status. Put it in your calendar the day you land.
Practical note: some applicants find that entering on S2 and converting is smoother than applying for S1 abroad, because the hospital’s letter can be obtained after you have already met the treating team. This depends heavily on your consulate. Ask before you decide.
Bringing a family member
Immediate family members can accompany you — typically a maximum of two attendants.
Each needs:
- Their own S visa (S2 for a stay under 180 days)
- A notarized certificate of kinship
- A care confirmation letter from the hospital
The notarization is the step that slows people down. Do it early — in your home country, before you travel, and before you have a flight date you can’t move.
The L visa trap
The L visa is the ordinary tourist visa. Some agencies — and some forum posts — suggest using it because it’s easier to get.
We recommend against it, and here’s the concrete reason.
If you enter on a tourist visa and something goes wrong — a complication, a dispute, an insurance claim — your entry purpose and your actual activity do not match. That mismatch is a problem in three places at once:
- Immigration — you entered for tourism and received medical treatment.
- Insurance — travel medical policies routinely ask for your entry purpose. A mismatch is a common ground for denial.
- Extension — you cannot credibly apply to extend a tourist stay for ongoing medical care.
Also note: with visa-free entry now covering 30 days for many nationalities, the L visa’s main advantage — “it’s easier” — has largely evaporated. If you’re going for treatment and you need a visa, get the right one.
Which one is you?
| Situation | What to apply for |
|---|---|
| Checkup, 1–3 days, visa-free nationality | No visa |
| Consultation + imaging, under 30 days, visa-free nationality | No visa |
| Short procedure, low complication risk, under 30 days, visa-free nationality | No visa, but weigh the risk |
| Surgery, even if it looks like it fits in 30 days | S2 |
| Treatment course of 1–5 months | S2 |
| Chemotherapy, transplant, extended rehab, 6+ months | S1 |
| Travelling with a companion | Same as above + their own S visa + notarized kinship |
| Not from a visa-free country | S2 (or S1 for long courses) |
What we do — and what we don’t
We help patients from Southeast Asia work out which visa pathway applies to their nationality and their specific treatment, and we help them get the hospital letter that the application depends on.
We charge a flat fee. We take no money from hospitals. So when we tell you that you probably don’t need a visa at all, we are not losing a commission by saying so.
We are not immigration lawyers and we don’t file visa applications for you. We tell you which path fits and what to watch for. Your consulate makes the decision.
Download the full checklist
Including visa pathways by nationality, the document list, and the seven things that most often go wrong.
[Get the 2026 China Medical Travel Checklist →]
This article reflects Chinese visa policy as published through 2026 and is informational only. It is not legal or immigration advice. Visa rules change frequently — the visa-free country list in particular has been expanded several times in 2025–2026. Verify with the Chinese embassy, consulate, or visa application service center in your country before applying. We are not affiliated with any government agency.