Appointment reminder messages for hospitals: Hindi and English templates

Many patients who miss an OPD appointment didn’t decide to stay away. The date slipped. A short, polite message at the right time catches much of that, as long as it reaches the patient, sounds like your hospital and follows the rules for SMS and WhatsApp in India. This page has the messages first, then the rules.

Do reminders reduce no-shows?

Across 105 studies worldwide, the average no-show rate was about 23% (Dantas and colleagues, 2018). We found no peer-reviewed national figure for India. But in a 2026 study of 100 patients who had missed OPD appointments at an Indian tertiary care hospital, forgetfulness (mean score 4.05) and the lack of an appointment reminder (4.00) were the top reasons patients gave. In the authors’ statistics, forgetfulness was linked to missed visits, while reminders, on their own, showed no significant link.

The best evidence that reminders help comes from a Cochrane review of eight randomised trials with 6,615 participants. Text-message reminders improved attendance compared with no reminder (risk ratio 1.14) and worked about as well as phone-call reminders (risk ratio 0.99). Attendance was 67.8% with no reminder, 78.6% with text reminders and 80.3% with phone calls. These are global trials, and the authors rate the evidence low to moderate in quality.

What every reminder should say, and leave out

A good reminder covers six things:

• Who it is from: your hospital’s name.
• Who and when: the patient, the doctor, the day, the date and the time.
• Where: the OPD, floor or counter.
• What to bring: old prescriptions, reports, the appointment number.
• What to do if plans change: a number to call, or a reply that cancels.
• How to stop the messages: one short line, at least in the first message.

Leave out the diagnosis, test results, medicine names, offers and discounts. Other people may see the patient’s phone, and none of it is needed to get them to the right OPD at the right time.

Seven templates in Hindi and English

Words in curly brackets change with every message: {patient_name}, {doctor_name}, {date}, {time}, {hospital_name}, {hospital_phone}. Words in square brackets are fixed text you fill in once. In Hindi, fill {date} with the day and date, such as गुरुवार, 19 नवंबर (Thursday, 19 November), and {time} with the part of the day, such as सुबह 10:30 (10:30 in the morning).

1. Booking confirmation

2. The evening-before reminder

3. The morning-of reminder

4. Doctor running late

Here {new_time} is the patient’s new expected time.

5. Appointment moved

6. Missed appointment

7. Follow-up due

Keep the follow-up message about the visit. Never add the medicine, the condition or an offer to order medicines.

Sending them by SMS: the DLT rules

Business SMS in India runs under TRAI’s Telecom Commercial Communications Customer Preference Regulations, 2018 (TCCCPR), which telecom operators enforce on distributed ledger (DLT) platforms. Before the first reminder goes:

1. Register the hospital as a sender with an operator. Operators may carry commercial messages only from registered senders using registered headers (regulation 3).
2. Register a header, the sender name patients see, of up to 11 characters. Since the 2025 amendment, a suffix shows the message type: “-S” for service, “-T” for transactional, “-P” for promotional and “-G” for government. In our reading, reminders to your own patients fit TRAI’s definition of a service message: information about a service they use, not promotional.
3. Register every template. Operators check each message against a registered template with fixed text and marked variables. Since 2025, a template may have more than three variables only in special circumstances, with justification, and then each variable must be tagged for its purpose and at least 30% of the template must be fixed text. One template is tied to one header, templates unused for 90 days are deactivated until you ask for them back, and any link or call-back number in a message must be whitelisted.

TRAI tightened the rules again in September 2026, mostly against spam: an operator must now suspend a misused header or template within six hours of becoming aware of the misuse.

So for SMS, write the hospital’s name and phone number into the fixed text and keep to three variables. The evening-before reminder becomes:

Keep each variable short (“Dr Asha Verma”, “Thu 19 Nov, 10:30 am”); the 2025 rules treat 30 characters as the limit for one variable. Hindi SMS in Devanagari is sent as Unicode, so fewer characters fit in each message part.

Sending them on WhatsApp: opt-in, templates and the 24-hour window

Ask first. WhatsApp’s Business Messaging Policy lets a business message people only if they have given their number and opted in, “confirming that they wish to receive subsequent messages or calls from you”. Meta’s opt-in guide says the request must make clear that the person is opting in to messages, and from which business. You can ask on the phone, at the counter, on paper or on your website. Here is an example written for this guide; Sunrise Hospital is a sample hospital we made up:

Note the yes, the date and how it was given. If the patient later says stop, on WhatsApp, on the phone or at the counter, stop: the policy requires you to respect opt-out requests made on or off WhatsApp.

Use approved templates. When a patient messages or calls you, a 24-hour customer service window opens and you can reply freely. Once it closes, you can send only templates Meta has approved, and a reminder usually goes days after the last contact. Submit these as utility templates, which Meta defines as specific to or requested by the user and free of promotion; add an offer and the template counts as marketing.

Write them the way Meta reviews them. Variables go in double curly brackets, either numbered ({{1}}) or named in lowercase with underscores ({{patient_name}}). A template cannot start or end with a variable, which is why each one above opens with नमस्ते or “Hello” and closes with a thank-you. Too many variables for the length is another common reason for rejection, and Meta says a decision can take up to 24 hours.

Keep medicines out. The policy prohibits using WhatsApp Business to buy, sell or promote drugs, prescription or otherwise, and medical and healthcare products. It also tells businesses not to send health information where the law demands stronger safeguards than WhatsApp provides.

Timing and tone

We found no trial that settles the best hour, so these are our suggestions: the confirmation straight away, the reminder the evening before between 6 and 8 pm, a short note on the morning of the visit (not before 7 am), a running-late message as soon as reception knows, and one message per event.

Tone matters as much as timing. A few swaps make a message sound like a good receptionist rather than a machine:

Where DrMate fits

DrMate’s front desk sends the booking confirmation, the evening-before reminder, notices when a time changes and follow-up reminders on WhatsApp, only to patients who said a clear yes: on the call with the AI receptionist, at the counter or on the booking page. “Stop” is honoured. The reminder goes from 6 pm the evening before, and when reception marks a doctor as running late, every later patient’s time shifts and those who said yes are told. Patients can tap to say they are coming or to cancel, and reception can also open their own WhatsApp with the message already written. DrMate never sends medicines, promotions or orders on WhatsApp. If most of your bookings start with a phone call, our guide to what an AI receptionist does covers the call that comes before the reminder.