Oedema in ankles

I had a protastectomy in Feb 2017 and am about to start radiotherapy as my PSA was still 0.12 after the first blood test. I was told that the cancer I had was a 'particularly nasty and aggressive' type and I had to have all the nerve endings, lymph nodes taken away at the time of surgery.
I'm still incontinent, although have more control now. I wear approx one pad per day BUT I'm having to use the toilet just as much now as I ever did pre surgery. If not more.
I'm on a hormone injection to accompany the radiotherapy.

Why I'm posting is because I've quite recently noticed swelling and oedema in my ankles, but particularly in the left one. I've tried to remain energetic after the surgery and walk daily.
Has anyone suffered similar approx 3 months after surgery? The info does say that oedema in the ankles can be a side effect of the hormone injection. I'm worried because I've read it can also mean problems with the bladder and kidneys too. I've not noticed any blood in my urine and have a strong flow.
Any advice on this greatfully accepted.

Colin

How many lymph nodes did they take? Lower extremity edema is a potential complication following pelvic lymph node dissection (PLND). It could disappear by itself since the lymph fluid finds new paths.

In the body, there's the vascular system (blood) and the lymphatic system - little 'nodes' present all over the body which act as 'garbage' collectors.

I had 44 lymph nodes removed during surgery and consequently had fairly significant lymphoedma in both legs and even up into my abdomen area. I wear knee high support hose and use a pneumatic compression garment to help squeeze the accumulated fluid back up. It's quite effective but my legs still ache.

Some women who had breast cancer surgery will also have lymph nodes removed in the area and their arms will swell due to the accumulation of lymphatic fluid. There are compression garments they wear to alleviate that swelling