People with Parkinson's may be more likely to have problems with their bladder or bowels than people of a similar age without the condition.
However, not everyone with Parkinson's will experience these symptoms.
Having Parkinson's can also mean that the messages from the brain to the bladder may not get through properly.
This can cause:
Constipation can make people feel unwell or lethargic and can be painful.
In general, I find drinking lots of water and eating plenty of fruit and vegetables helps to ease constipation.
A dietitian can advise you on what foods to eat.
If you have bladder problems, it's important not to cut down on how much you drink. It won't help and could leave you dehydrated. Some people find cutting down on fizzy drinks, caffeine and alcohol helps.
Take a look at our Q&A on bladder and bowel problems with Dr Duncan Forsyth.
There are many different ways of managing the symptoms so they don't rule your life. Plenty of professional help is available and your GP can refer you.