brown tree snakes are nocturnal. most of Guam's native forest birds are not. explain how this has affected both the snakes and the birds. The snakes easily find and kill the sleeping birds, and the snakes success has allowed them to reproduce quickly.
A person may have both internal and external hemorrhoids. Symptoms of hemorrhoids include occasional throbbing pain, itching, burning sensation, bright red blood on toilet paper or stool, or a lump of soft tissue protruding outside of the anus.
Pain, itching, and bleeding are common symptoms. Hemorrhoids inside the rectal opening are usually painless, but often bleed and cause a feeling of fullness. This may result in an urge to have a bowel movement even when there is no stool present. Straining to have a bowel movement can aggravate the problem.Bleeding from internal hemorrhoids usually occurs at the end of the bowel movement. You may notice that the stool is streaked with blood, blood may drip into the toilet bowl, or it will appear on the toilet paper when you wipe.training to have a bowel movement can aggravate the problem. Bleeding from internal hemorrhoids usually occurs at the end of the bowel movement. You may notice that the stool is streaked with blood, blood may drip into the toilet bowl, or it will appear on the toilet paper when you wipe.