- 21. Anal itching
- (Anal itching)
- ... same household can also be infected. Other parasites may cause similar itching. Anal tumors. Rarely, benign or cancerous tumors in or around the anus may be a cause of anal itching. Other causes. Anal ...
- 22. Chagas disease
- (Chagas disease)
- ... Central America. They hide in crevices in the walls or roof during the day, then come out at night — often feeding on sleeping humans. When infected bugs bite a person, they leave behind T. cruzi parasites ...
- 23. HIV/AIDS
- (HIV/AIDS)
- ... is caused by Toxoplasma gondii, a parasite spread primarily by cats. Infected cats pass the parasites in their stools, and the parasites may then spread to other animals. Cryptosporidiosis. This infection ...
- 24. Trichomoniasis
- (Shanghai STDs Testing Center)
- What is trichomoniasis? Trichomoniasis is a common sexually transmitted disease (STD) that affects both women and men, although symptoms are more common in women. How common is trichomoniasis? Trichomoniasis ...