According to a study made few years back. A 22-years-old woman was diagnosed with HIV after sharing manicure equipment.
According to experts, the risk of getting HIV through Manicure equipment is low risk but it does not means its non-existence. HIV is generally, transmitted through bodily fluids such as blood, semen and rectal fluid and must be entered directly into a person’s blood stream or come in contact with mucous membrane or damaged tissue.
Many home grown business in Singapore offers Manicure service from HDB homes that are usually not regulated therefore there is no control and the risk of exposing to HIV exist.
Do not be afraid of Manicure because of this, what you should do is always ensure and asked the equipment to be sterilized first before use.