- Muscle strain
- Mallory-Weiss syndrome
- Lynch syndrome
- Lymphangitis
- Lower extremity arteriosclerosis obliterans
- Intestinal spasm
- Injury, Poisoning, and First Aid
- Hypersplenism
- Hiatal hernia
- Enema
- Deep vein thrombosis (DVT) in the lower extremities
- Castleman's disease
- Arteriovenous malformation
- Anal polyp
- Anal papilla hypertrophy
- Anal fistula