Fungal peritonitis is an important reason of catheter loss among peritoneal dialysis patients. The most frequently isolated agents are Candida species and some patients do not respond to the treatment and die. Two siblings who lived in the same house and followed-up at our center were admitted to the hospital for peritonitis and both were transferred to hemodialysis as fungal peritonitis was detected. The enabling factor was considered to be poor hygiene. Hygiene is important issue for peritoneal dialysis patients, especially those who live in the same house.