Hemorrhoid

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Hemorrhoid

Gastrointestinal system

Gastrointestinal system

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Hemorrhoid

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Hemorrhoid

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USMLE® Step 1 style questions USMLE

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A 52-year-old man comes to his primary care physician because of pain with defecation. The symptoms began 2 weeks ago. The pain is worse with straining, and the patient has occasionally noticed streaks of fresh blood on his stools. He works as a construction worker, and his diet consists mostly of fast food. His temperature is 37.3°C (99.1°F), blood pressure is 142/85 mmHg, and pulse is 73/min. Physical exam shows multiple purplish-blue sacs in the anal canal. Which of the following structures is most likely responsible for providing sensory innervation to the lesion site?  

External References

First Aid

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External hemorrhoids p. 375

Hemorrhoids p. 375

Internal hemorrhoids p. 375

Summary

Hemorrhoids are inflamed and swollen veins in the rectum or anus. They may be caused by straining during a bowel movement, pregnancy, childbirth, or obesity. They can also be a result of prolonged sitting or standing. Symptoms include pain, itching, and bleeding.

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