Hemorrhoids may be caused by factors that increase the pressure in the rectal veins such as chronic cough, chronic constipation, and straining.
What are hemorrhoids and what causes them?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: What are hemorrhoids and what causes them? [/INST] \n Hemorrhoids may be caused by factors that increase the pressure in the rectal veins such as chronic cough, chronic constipation, and straining.</s>