Start with records you can maintain. A few consistent entries are easier to review than a detailed tracker you stop using after a week.
Your prescribed medication and doses
Keep the medication name and prescribed schedule somewhere you can find them. For each dose, record the amount, date, and time. If you use injections, you may also want to record the site.
Record what happened, including a late or missed entry. If you are unsure what to do after a missed dose, ask your prescriber or pharmacist rather than using the log to work out a replacement dose.
How you felt
Choose a small number of symptoms or experiences you want to follow, such as energy, mood, or sleep quality. Use the same scale each time and add a note when there is context you want to remember.
You do not have to explain every change. A record of “felt tired today” is still useful even when you do not know why.
Blood results
Keep the date, marker, value, units, and lab reference range. Retain the original report as well. If your clinic gives you instructions about test timing, keep those with the appointment details.

Before an appointment
Review the period since your last visit. Note any missing records and write down the questions you want to ask. A chart can help you find dates to discuss; it cannot establish what caused a symptom or which treatment you need.
TRT Monitor brings these records together and lets you prepare a shared report. A spreadsheet or notebook can also work if it gives you a record you can maintain and retrieve.