Constipation is a common condition that can have many causes. Some of the main causes of constipation include:
Diet
Dehydration
Lack of physical activity
Medications
Hormonal changes
Neurological conditions
Colon or rectal disorders
Psychological factors like stress and anxiety
It's also worth noting that in some cases, no specific cause can be identified, this is known as primary or idiopathic constipation.