Hemorrhoids are swollen veins in the rectum or anus that can cause pain, itching and bleeding. They are often caused by constipation or pregnancy which increases pressure in the veins. Symptoms include bleeding with bowel movements or protrusion of tissue from the anus. Treatment depends on severity but may include increasing fiber, warm baths, over-the-counter creams or if severe, procedures to cut off blood flow or surgery. With proper treatment, most people have relief of symptoms.