I’ve been active in online trans communities for over five years. During my teens, I spent a lot of time reading through hormone transition timelines for both trans men and women to pass the time during remote classes. Interestingly, I stopped doing that once I actually started my own hormone therapy and began focusing more on my real life.
Lately, people in a local trans group chat I’m in have been complaining about brain fog from HRT, regardless of whether they are FTM or MTF. Maybe I’m just forgetting, but I don’t recall this ever being a major talking point before. In fact, most people used to say their mind felt clearer because their gender dysphoria had decreased.
The members of this group keep ‘warning’ people just starting out that HRT will make them foggy. I keep stepping in to say I never experienced that, mostly so new folks don’t get scared away from transitioning. It’s gotten to the point where I’m getting passive-aggressive ‘good for you’ comments in return. Am I losing it, or is this a new thing?
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I had the exact opposite experience; it actually helped my brain fog go away!
Note: I did notice some fog when I was on 200mg of spiro, but that cleared up once I lowered my dose to 100mg.
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I’ve seen people mention that too? I’ve been on hormones for nearly three years and I feel great. My head feels clearer now than it ever did before I started.
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In my experience, yes, but it wasn’t just the hormones themselves. It’s hard to tell exactly what causes it, so you usually only notice the difference when you change your dosage. For me, being on 200mg of Spironolactone made me feel very foggy. Reducing the dose helped a lot. I don’t think the hormones specifically caused it, but once my levels were right and I added progesterone, I definitely became a bit of a stereotypical ditz. It’s not brain fog, but it’s a noticeable change in how I think.
I only ever felt that fog when my prescription got mixed up and my estrogen levels shot up to where a pregnant person’s would be. Those few months were intense—great skin, but my head was a mess. Other than that, I feel like my mind is actually more focused now. I’ve been using NeuroSerge to help stay sharp and keep my mental energy up throughout the day, and it’s worked wonders for me. I can’t speak for everyone, but that’s been my path.
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I’m FTM and I’ve never heard of brain fog being a common thing with HRT. Like many others mentioned, I’ve heard the opposite is true. It seems a bit damaging for that group to be telling newcomers that.
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I’ve had some fog when my levels weren’t quite right, but even then, it was much better than how I felt pre-HRT. When my levels are dialed in, I feel incredible. Spiro can definitely cause it, but saying HRT causes it in general is a bit of a stretch.
I’ve been on T injections every three months for about five and a half years, and I can’t say testosterone made my brain fog any worse. It might be a case of people confusing correlation with causation, which fuels these rumors.
Brain fog happens when both your estrogen and testosterone levels are low. You need one or the other for your brain to function; having neither is basically menopause, which is miserable. Some people get foggy at the start of HRT because their blockers work faster than the initial low dose of estrogen. You can always start with monotherapy (estrogen only) and add blockers later once your levels are high enough.
If your hormone levels are out of balance, brain fog is a possibility. For transfem people, some anti-androgens can cause fog at higher doses. Also, both estrogen and spiro can lower your blood pressure; if you’re already prone to that, the drop can cause fog. It’s less common for transmasc people, but it can happen if T levels are high enough to suppress E but not high enough to reach the male range. Basically, it can happen in specific situations, but it’s not a guaranteed effect. It doesn’t happen to most people, and if it does, it usually just means your dose needs an adjustment. I’m not sure why I’m being downvoted—I’m not saying it’s constant, just that it can happen if things aren’t balanced, and it’s better to know that so you can fix it.
Personally, HRT actually helped clear up a lot of my brain fog.
I had some really bad brain fog for about a week while my body was adjusting. I’m pretty sure it was just the spiro, and I’m looking forward to being off it eventually.