A TRT symptom tracker is a running log that keeps three things side by side: your injections, how you feel, and your lab results. Any one of them alone can mislead you. A lab number with no context is hard to read. A bad week with no dose history is hard to explain. This guide covers what is worth writing down, when to write it, and what the main clinical guideline says about checking in on treatment.
Why shots and labs are not enough
The Endocrine Society's 2018 guideline on testosterone therapy in men says a diagnosis of low testosterone should be made only in men who have symptoms and signs that fit testosterone deficiency and clearly, repeatedly low blood levels. It asks for two separate fasting morning measurements of total testosterone (Bhasin et al., 2018). Symptoms are half of the picture from the very start.
The same guideline treats symptoms as part of follow-up. It says clinicians should check symptoms, signs and side effects at each visit, not only look at lab values. If you keep your own record, you walk into that visit with something better than "I think I felt okay."
What to log: the short list
- Every injection. Date, time, dose in mg, product, and injection site. This is the backbone. Everything else is read against it.
- A quick check-in. A 1 to 5 score for energy, mood, focus, sleep quality, libido and similar areas. Keep it short enough that you will do it on a tired day.
- Specific symptoms. Acne, headaches, water retention, poor sleep, irritability. Note how strong it was (mild, moderate, severe) and one line of detail.
- Labs, with the cycle day. Write down how many days after your last injection the blood was drawn. The same total testosterone number means different things on day 1 and day 6.
- Hematocrit and other safety labs. These are the ones people forget to chart.
Which symptoms deserve the most attention
Not all symptoms are equally useful. The guideline says that in surveys of middle-aged and older men, low libido and erectile dysfunction, plus less specific symptoms such as fatigue, irritability, depressed mood, poor concentration, reduced physical performance and sleep disturbance, are associated with low testosterone. But in the European Male Aging Study, only the sexual symptoms (poor morning erections, decreased libido and erectile dysfunction) had a clear link with total testosterone below about 320 ng/dL (Bhasin et al., 2018).
What that means for your log: track libido and morning erections on purpose, because they carry the most signal. Track mood, energy, focus and sleep too, but remember they can move for many reasons, such as stress, a bad night, or a hard training week. A pattern over several weeks tells you more than one low day.
When labs happen, and what to note
The guideline gives a monitoring plan you can use as a checklist. It says to measure testosterone and hematocrit at 3 to 6 months after starting (depending on the form of testosterone), then at 12 months and yearly after that (Bhasin et al., 2018).
For injectable testosterone enanthate or cypionate, the guideline says to measure testosterone midway between injections. If that midpoint value is above 600 ng/dL or below 350 ng/dL, it says to adjust the dose or the frequency. Other forms have other timing, so write down which product you use and ask your clinic when they want the draw. For testosterone gels the guideline says to check 2 to 8 hours after applying the gel, after at least one week of use.
On hematocrit, the guideline says to check at baseline, at 3 to 6 months, and then yearly. If it is above 54%, it says to stop therapy until it comes down to a safe level, evaluate for low oxygen and sleep apnea, and restart at a lower dose (Bhasin et al., 2018). That is a decision for your clinician. Your job is to make sure the number and the date are in your record.
For more on why a lab drawn too early can mislead, see our guide to TRT steady state.
A routine that takes under a minute
- Shot day: log the injection right after you do it, including the site.
- Once a day or a few times a week: do the quick check-in at about the same time of day.
- When something stands out: add a symptom with a severity and one line of notes.
- Lab day: add the result and the number of days since your last shot.
- Before an appointment: scroll back over the last month so you can speak in specifics.
How Dose Track handles this
Here is what the app does today, so you know what to expect:
- Injection log. Each shot is saved with date, time, dose and injection site, and you can set reminders. See the TRT tracking guide.
- Check-in. You rate mood, focus, anxiety, motivation, irritability, energy, hunger, sleep quality, gym performance and libido from 1 to 5. You can also add your weight, a yes or no for morning erections, and a note.
- Symptom log. You pick from groups of symptoms (common, mental, physical, sexual and skin), set a severity and add notes. A history screen lists past entries.
- Timeline. Doses, notes, check-ins, symptoms, labs and progress photos appear in one journal, so you can read them in order.
- Labs. You can add lab results and see them next to your dosing history.
The app shows an estimated level curve from your dose history. It is an estimate from a model, not a blood test, so use it to see the shape of your schedule and keep your real labs for decisions.
This article is general information, not medical advice. Talk to your prescriber before you start, change or stop any medicine.
Frequently asked questions
What should I track while on TRT?+
Track three things together: each injection (date, time, dose, site), how you feel (energy, mood, focus, sleep, libido, morning erections), and your lab results with the day of your injection cycle they were drawn on. The Endocrine Society guideline says clinicians should check symptoms at each visit and measure testosterone and hematocrit at 3 to 6 months, then yearly.
Which symptoms are most tied to low testosterone?+
In the European Male Aging Study, as summarized in the Endocrine Society guideline, only sexual symptoms (poor morning erections, lower libido and erectile dysfunction) had a clear link to low total testosterone. Fatigue, irritability, low mood, poor concentration and sleep problems also show up but are less specific.
When should testosterone be measured on injectable TRT?+
For injectable testosterone enanthate or cypionate, the Endocrine Society guideline says to measure serum testosterone midway between injections, 3 to 6 months after starting. It says to adjust the dose or frequency if that midpoint value is above 600 ng/dL or below 350 ng/dL. Your prescriber may use a different plan.
What hematocrit level matters on TRT?+
The Endocrine Society guideline says to check hematocrit at baseline, 3 to 6 months after starting, then yearly. If hematocrit is above 54%, it says to stop therapy until it falls to a safe level, look for low oxygen and sleep apnea, and restart at a lower dose. That decision belongs to your clinician.
Does Dose Track have a TRT symptom tracker?+
Yes. Dose Track has a quick check-in that rates ten areas from 1 to 5, a symptom log with severity and notes, and a timeline that puts doses, notes, symptoms, labs and photos in one list. It also logs each injection with its site and sets reminders.