What causes piles?

I have been battling piles for the last six months. Kindly let me know what could be the cause of the ailment.

Jelili (by SMS)

Piles (hemorrhoids) are caused by increased pressure in the blood vessels around the anus and rectum, leading to swelling, often from straining during bowel movements (due to constipation or low fiber), prolonged sitting, being overweight, heavy lifting, pregnancy, chronic diarrhea, or even chronic coughing.

These factors weaken or damage the supportive tissues, causing veins to bulge and become painful.

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