So I think I might have realised why my ankles swell on some runs and not others. They tend to swell if I run through fields where it's a bit bumpy and I am more aware of where I am placing my feel, as opposed to flat road running.
Does this make sense? Any tips?
Swelling on some runs more than others. Factors would be heat and any contact with an allergen (no grass allergy I surpose). The increased pronation and supination of your foot/ankles (really subtalar joint but that's me being pedantic - ignore!) that is turning of your foot inwards and outwards, could mean the increased joint movement may cause swelling. As long as it always settles with elevation and is only on some runs then that's OK. And elevation perhaps with ice is the best way to reduce swelling. You can get machine that improve circulation (helped my mum) but more for chronic conditions than what you describe.
Love having a resident doctor on our forum 
Unfortunately A&E rather than a sports doctor, so more used to dealing with the injuries.
Good advice though 👍
Wish I'd listen to myself sometimes lol. Did myself in a bit by having lots of alcohol (numbers unavailable), then doing a run (W4R3) AND swim (2.4k in 70mins) the next day. The day after really was a rest day and rather enforced!
Thank you for your good advice. I probably should have added that I'm nearly 6 foot with seriously knocked knees and I had a mfpl reconstruction around 3 years ago. So those things are not going to help. 😜
No they aren't! I think probably the increased sub talar movement on bumpy ground will be more pronounced in your case.
Yeah that's what I thought. Although so far it's fine just noticeable. Not stopping me at all.
Great!
Running on uneven ground does work every muscle and sinew of your legs in a way that road running does not, but I have never heard of swelling as a consequence. If you are not in pain or discomfort I can't really see why you shouldn't carry on and perhaps, as your body gets used to it, it may lessen.
Your lower legs, ankles etc. will be stronger for running on these surfaces.
Thank you. I've had a mfpl reconstruction about 3 years ago to stop my knee dislocating, so I would imagine that's a lot too do with it.
Last year I moved from a completely flat area (streets and canal paths) to a much more open area with fields, woods and trail-y paths. I didn't so much get swollen ankles, or not that I noticed, but I got bruised ankles, and they hurt! I had 10k under my belt and lots of running confidence by then but the new terrain threw me, my times were all much slower and everything ached more. The answer was trail shoes. My adidas galaxy trail shoes are really cushiony and supportive. I now have the choice between them and my normal road karrimors depending what terrain I'm going to run on. But also I think you need to build up strength in your ankles, it takes time, I'm kind of there now after a year of perseverance...
Thank you I think that I will treat myself to getting my gait analysed soon. You might be right that trainers are key!
Or even just try a few different styles. I just went to sports direct and did my own research
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Went over on ankle, grrrr
