The fingertip rule, often called a fingertip unit (FTU), is used for topical steroid creams rather than anabolic injections or tablets. One FTU is the amount of cream squeezed from a standard tube, with a narrow nozzle, from the crease of an adult finger to the tip; this quantity covers approximately two adult handprints of skin. Healthcare providers use this measure to help patients apply enough medicine to be effective while avoiding excessive use that might thin the skin or cause systemic absorption. Different body areas require different numbers of FTUs, with larger surfaces like the trunk needing more than delicate regions such as the face or genitals. This structured approach helps people treat eczema or dermatitis safely, and it does not apply to injectable or oral bodybuilding steroids.