An improved axillary crutch is disclosed. The crutch has two inter-connected hollow-tube frame members. The bottom frame member is radially shaped at the end which comes in contact with the floor, the radial design of the bottom frame member being derived from the natural arching motion of the crutch. A radial crutch tip is fitted over the radial end of the bottom frame member. The bottom frame member telescopes into the top frame member. A bolt within the handle of the crutch passes through apertures in each frame member and is secured by a wing nut. The height of the crutch is changed by removing the bolt, telescoping the bottom frame member into or out of the top frame member and resecuring the bolt at the desired location. The handle can also be moved relative to the crutch by removing the bolt, changing the position of the handle, and securing the handle at the desired location by reinserting the bolt. Adjusting the crutch height and the handle height both can be accomplished in one step.