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Catheter and blood clots in urine

Posted 01 Jan 2019 at 21:18


My dad has advanced stage prostate cancer with a PSA of 128.

He has a Catheter in place since his diagnosis in August as he was having issues urinating.  Since thent, he has been back and forth to the local hospital due to his catheter being blocked with blood clots.

He has until very recently been taking clexaned daily to keep his blood thin as he is susceptible to DVT however as he is continuously experiencing blockages and requiring bladder flushes- he has been been advised by his oncologist to no longer take it. 

Has anyone else experienced this? We take some comfort his PSA is falling ( it was 640 in August ) however the doctors are struggling to get this issue under control which is taking its toll on his mental health.






Edited by member 02 Jan 2019 at 09:07  | Reason: Spelling

Posted 02 Jan 2019 at 08:16


I have no experience of clexanea but  some experience with catheters. Is he drinking plenty of water and I mean water not tea and or coffee. What size is his catheter or what colour is the collar on the end ? A larger catheter may drain better but may cause more discomfort. If he is to be catheterised long term it may be worth asking about a supra pubic catheter (SPC) that is sited about 100ml below the belly button. Instillagel is a lubricant , antiseptic and anesthetic that can reduce soreness caused by rubbing of the catheter in the penis but would not help with blocking etc. How old is dad and is he active and mobile ?

Thanks Chris

Edited by member 02 Jan 2019 at 08:17  | Reason: Spelling

Posted 02 Jan 2019 at 08:23

My husband has a supra pubic catheter and has had it since the end of 2015. He doesn't take blood thinners but he does still get clots, though these days they cause slow drainage and granulations around the wound site as problems rather than anything else. These problems do need to be managed by the specialists, they are the ones who can advise as this is a medical issue. John takes a water tablet as he has lymphoedoma, which has helped with that a bit.

love Devonmaid 

Posted 02 Jan 2019 at 09:04

His catheter is an 18mm and I'm not sure what colour it is at the end. Over the past month, he has had four catheter changes due to infection and clotting - he experiences slot of pain each time they are changed.

He drinks plenty of water however due to his poor mental health, he isn't moving moving much apart from walking round the house on occasion. He says he is fatigued he is 69 I am just wondering does his activeness play a part in the catheter blocking?

Many thanks



Edited by member 02 Jan 2019 at 09:05  | Reason: Not specified

Posted 02 Jan 2019 at 10:34


I am not medically qualified so my responses are based on my experience or thoughts. I can produce anything from 300ml to 1100 ml of urine overnight, so the urine is slowly dribbling out of my bladder into the catheter and onto the bag/bags, I assume any debris and forming clots will settle in the bottom of the bladder and the urine will flow freely through the slots in the catheter, of course tossing and turning will alter the position of the bottom of the bladder. I have never woke up  at night with a blocked catheter. Once awake and mobile the Debris etc has a better chance of blocking the slots, a removed catheter often seems to have gunge around the slots. When mobile the catheter tip and balloon does have the ability to rub against the wall of the bladder causing debris and producing blood.

Not emptying the bag often enough can slow the flow of urine through the bladder and presumably increases the chances of infection. Catheters do get colonized with bacteria, I have had the brown coloured catheters fitted that have an antibacterial coating.

I am issued with and have used flushing bottles to release blockages but sounds like Dad may not be capable of that. When flushing a catheter yourself it is easy to feel what is happening, having an untrained person doing for you is not recommended.

I would not want much more than a size 18 catheter in the urethra, I have had a size 18 and it was like having toothache that never goes away. The number size on a catheter is a French gauge for catheters not mm. 

I hope you can get a solution for your Dad.

I mentioned instillagel in the last post make sure they use when changing the catheter and they should allow five minutes for the anesthetic to kick in.

Thanks Chris

Edited by member 02 Jan 2019 at 10:37  | Reason: Added last paragraph

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