When visiting a developing country or a place where sanitation is lacking, avoid swimming in sources of unclean water or walking barefoot in areas where contamination with fecal matter is possible. Many intestinal worms are uncommon in the U. Some common worms, such as pinworms, do not pose much harm. In most cases, a thorough course of treatment can help clear up the issue. However, anyone who suspects that their symptoms come from an intestinal worm should see a doctor as soon as possible for a diagnosis and treatment.
Most people respond well to treatment. A look at home remedies for ringworm, a condition that results in fungal infection on the skin. Included is detail on when to see a doctor and…. Ascariasis occurs when a parasitic roundworm infects a person's small intestine. It may not cause symptoms initially, but an extensive infection can…. Bacterial gastroenteritis, or food poisoning, is a gut infection that can cause diarrhea, abdominal pain, nausea, and vomiting.
People with bacterial…. Hookworm is an intestinal parasite that can cause infection at any age. People can catch it through contact with soil. It is rare in the United States,. Intestinal worms in humans and their symptoms. Medically reviewed by Saurabh Sethi, M. Symptoms Pictures Types Risk factors Diagnosis Treatment Complications Prevention Takeaway Intestinal worms, or parasitic worms, are simple organisms that feed off the human body.
Types of worm and how they enter the body. Risk factors. Share on Pinterest Doctors may use a colonoscopy to check the bowel for parasites. Share on Pinterest People should never eat undercooked or raw meat. Latest news Scientists identify new cause of vascular injury in type 2 diabetes. Adolescent depression: Could school screening help? Related Coverage. Are there any home remedies for ringworm?
Medically reviewed by Debra Rose Wilson, Ph. Everything you need to know about ascariasis. They can cause a myriad of symptoms, only a few of which affect the digestive tract, but the good news is that yes, they are treatable. A parasite is any organism that lives and feeds off another organism.
Examples of parasites include:. Because parasites come in so many different shapes and sizes, they can cause a very wide range of problems. Some consume your food from inside your body , leaving you hungry after every meal and unable to gain weight. A pharmacist can help with worm infections A pharmacist can help if you have: small, white worms in your poo that look like pieces of thread extreme itching around your anus, particularly at night This is probably threadworms.
Find a pharmacy. Non-urgent advice: See a GP if you:. Threadworms look like tiny pieces of white cotton Credit:. Important Go back to the GP if your symptoms do not get better in 2 weeks or you keep passing live worms in your poo. Do wash your hands before eating or preparing food, and after touching soil or using the toilet only drink bottled or boiled water in high-risk areas places without modern toilets or sewage systems deworm pet dogs and cats regularly dispose of dog and cat poo in a bin as soon as possible thoroughly wash garden-grown fruit and vegetables.
Surg Laparosc Endosc Percutan Tech. Anthelmintic drugs for treating worms in children: effects on growth and cognitive performance. Cochrane Database Syst Rev. Evaluation of lactophenol cotton blue stain for detection of eggs of Enterobius vermicularis in perianal surface samples.
Trop Doct. Procop GW. Gastrointestinal infections. Infect Dis Clin North Am. Parasitic infections of the gastrointestinal tract. Gastroenterol Clin North Am.
Leder K, Weller P. In: Rose BD, ed. Infectious disease. Wellesley, Mass. Giardiasis surveillance—United States, — Infectious diarrhea from wilderness and foreign travel. In: Auerback PS, ed. Wilderness medicine: management of wilderness and environmental emergencies. Louis: Mosby, — Pet-, animal- and vector-borne infections. Pediatr Rev. Steiger U, Weber M.
Centers for Disease Control and Prevention. Publication of CDC surveillance summaries. Kitchen LW. Case studies in international medicine. Am Fam Physician.
Index of suspicion. Case 2. Diagnosis: anemia from hookworm infestation. Reed SL. Amebiasis and infection with free-living amebas. Harrison's Principles of internal medicine. New York: McGraw-Hill, — Walsh JA. Problems in recognition and diagnosis of amebiasis: estimation of the global magnitude of morbidity and mortality. Rev Infect Dis. Diagnosis and management of amebiasis.
Clin Infect Dis. Stanley SJ. Pathophysiology of amoebiasis. Trends Parasitol. Amebiasis: modern diagnostic imaging with pathological and clinical correlation. Semin Roentgenol. Guest editor of the series is Anthony J.
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Contact afpserv aafp. Want to use this article elsewhere? Get Permissions. Read the Issue. Sign Up Now. Previous: Obstructive Sleep Apnea in Children. Next: Practical Selection of Antiemetics. Mar 1, Issue. Common Intestinal Parasites. Hookworm egg. Computed tomographic scan showing liver abscess. Giardia lamblia Adults: Metronidazole Flagyl , mg orally three times daily for five to seven days Pregnant women with mild symptoms: consider deferring treatment until after delivery.
Water treatment options: Boil water for one minute Heat water to 70 C F for 10 minutes Portable camping filter Iodine purification tablets for eight hours Daycare centers: Proper disposal of diapers Proper and frequent handwashing Ancylostoma duodenale, Necator americanus Albendazole, mg orally once Mebendazole, mg orally twice daily for three days Pyrantel pamoate, 11 mg per kg maximum of 1 g once Iron supplementation is beneficial even before diagnosis or treatment initiation.
Use proper and continued shoe wear. Use proper sewage disposal. Entamoeba histolytica Intestinal disease: use both luminal amebicide for cysts and tissue amebicide for trophozoites Use proper sanitation to eradicate cyst carriage. Treatment and Prevention Treatment and prevention strategies for parasite infections are summarized in Table 1. Read the full article. Get immediate access, anytime, anywhere. Choose a single article, issue, or full-access subscription.
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