The pelvis is one of the trickiest structures in figure drawing, but it becomes manageable once you break it down into a simple 3D shape and learn a handful of bony landmarks that show through the skin. The key is to start with a bucket-like form, then refine it with anatomical details as needed for your drawing.
Start With the Bucket
The most widely taught simplification for the pelvis is the “bucket method,” popularized by figure drawing instructors like those at Proko. Instead of trying to capture every bone right away, you draw the pelvis as a slightly tapered bucket or short cylinder, open at the top and narrowing toward the bottom. This gives you a 3D container you can rotate, tilt, and place in perspective before worrying about anatomy.
The top rim of the bucket represents the iliac crest, the curved ridge you can feel at the top of your hips. The bottom of the bucket sits roughly at the level of the pubic bone in front and the sitting bones (ischial tuberosities) below. The back wall of the bucket is where the sacrum, the triangular bone at the base of the spine, wedges in between the two halves of the pelvis.
Once you can confidently draw this bucket from multiple angles, you have the foundation for any pelvis pose.
Key Landmarks That Show on the Surface
You don’t need to memorize every bone in the pelvis, but a few landmarks directly affect what you see on a living figure. These are the points where bone sits close to the skin and creates visible bumps, ridges, or dimples.
- Iliac crest: The top rim of the hip bone. It’s the curved ridge you rest your hands on when you put your hands on your hips. In a drawing, this line defines the widest point of the pelvis and often shows through clothing.
- ASIS (front hip points): The anterior superior iliac spine is the most forward-pointing bump on the iliac crest, located at the front of each hip. On a living model, you can find it by tracing up from the front of the thigh. These two points are visible on lean figures and are essential for establishing the front plane of the pelvis.
- PSIS (back dimples): The posterior superior iliac spine sits at the back edge of each iliac crest, at roughly the level of the second sacral vertebra. On many people, these landmarks appear as the small dimples on the lower back sometimes called “dimples of Venus.”
- Pubic symphysis: The joint where the two halves of the pelvis meet at the front, located at the very bottom of the lower abdomen. This marks the bottom-front of your bucket shape.
- Great trochanter: Not technically part of the pelvis itself, but the bony bump at the top of the thighbone sits right beside it and defines the widest point of the hips in a fleshed-out figure.
When sketching, placing the two ASIS points and the pubic symphysis gives you a triangle on the front of the pelvis. Placing the two PSIS points and the sacrum gives you the back. These six landmarks are enough to orient the pelvis in almost any pose.
Three Bones Inside the Bucket
Each half of the pelvis is actually three bones fused together: the ilium, the ischium, and the pubic bone. They fuse completely by adulthood, but understanding them as separate pieces helps you draw the shape more accurately.
The ilium is the large, fan-shaped bone that forms the upper wings of the pelvis. It’s the biggest section and includes the iliac crest. Think of it as the wide, flaring top of the bucket. The ischium is the lower-back portion, the part you sit on. The pubic bone extends forward and meets its partner at the pubic symphysis. Together these three bones form a ring with a large hole on each side (the acetabulum, where the thighbone plugs in), which is why the pelvis looks like a bony frame rather than a solid block.
Drawing the Pelvis in Perspective
Because the bucket is essentially a cylinder, drawing it in perspective means drawing ellipses. The top opening of the bucket becomes rounder or flatter depending on your viewing angle. When you’re looking at the pelvis straight on from the front, the top rim is nearly a straight line. As your viewpoint rises above the figure, that rim becomes a wider, rounder ellipse because you’re seeing more of the top plane.
The angle of the ellipse is always perpendicular to the long axis of the bucket. So if the pelvis is tilted to one side, the ellipse tilts with it. Getting this relationship right is the single most important thing for making a pelvis look three-dimensional and correctly oriented in space. Practice by drawing the bucket at different tilts and rotations, checking that your ellipses stay consistent with the viewing angle.
A common mistake is drawing the front and back of the pelvis as flat shapes. The pelvis wraps around in space. The ASIS points face slightly outward, not straight forward, and the iliac crests curve back toward the PSIS. Thinking of the bucket as a form with front, side, and back planes helps you avoid flattening it.
Male vs. Female Proportions
The pelvis is one of the most sexually dimorphic bones in the body, and getting these proportions right matters for believable figure drawing. A female pelvis is broader and shallower, with a wider opening and sitting bones that are farther apart. The pubic arch, the angle where the two pubic bones meet at the front, is wide and rounded. Think of a U shape.
A male pelvis is taller, narrower, and more compact. It tapers more noticeably from top to bottom, and the pubic arch is a sharper V shape. In practical drawing terms, a male bucket is taller relative to its width and has steeper sides. A female bucket is shorter and wider, almost more bowl-like.
These differences affect the entire figure. A wider pelvis shifts the angle of the thighbones, changes the width of the hips relative to the shoulders, and alters the rhythm of the torso’s contour. When blocking in a figure, establishing the pelvis width early helps everything else fall into place.
Pelvic Tilt Changes Everything
The pelvis rarely sits in a neutral, perfectly upright position. In a normal standing pose, most people have a slight anterior tilt, meaning the front of the pelvis tips forward and downward. Studies measuring this in healthy adults find an average anterior tilt of about 9 to 12 degrees, with women tending toward the higher end of that range. The total range in normal, healthy people runs from nearly flat (no tilt) to around 19 degrees forward.
For drawing, pelvic tilt is critical because it changes the relationship between the ribcage and the pelvis. In anterior tilt, the ASIS drops lower than the PSIS, the lower back arches inward, and the belly pushes slightly forward. In posterior tilt, the opposite happens: the ASIS rises, the lower back flattens, and the buttocks tuck under. These shifts ripple through the entire pose, affecting the curve of the spine, the position of the ribcage, and where the legs connect.
To show tilt in your drawing, pay attention to the angle of your bucket’s top rim relative to horizontal. A forward-tilted bucket pours forward; a backward-tilted one tips back. Drawing a centerline down the front and side of the bucket helps you track how much tilt you’re depicting. Even a few degrees of tilt adds life to a figure. A perfectly upright, untilted pelvis almost always looks stiff.
The Sacrum and Spine Connection
The sacrum is the wedge-shaped bone that locks into the back of the pelvis, connecting the spine to the hip bones. In a side view, the sacrum angles forward, not straight down. It tilts roughly 40 degrees from vertical at its upper connection point, then curves backward as it descends. This forward angle is what creates the natural curve of the lower back.
When drawing the pelvis from the side, place the sacrum as a flat, slightly curved triangular shape nestled between the two iliac wings, angled so its top tips forward into the body. The spine rises from the top of the sacrum. Getting this angle right prevents the common error of making the lower back look too straight or placing the spine too far back on the pelvis.
A Step-by-Step Approach
Putting it all together, here’s a reliable sequence for drawing the pelvis in a figure:
- Block in the bucket: Draw a tapered cylinder or box. Establish its tilt, rotation, and perspective with a clean ellipse at the top and a centerline down the front.
- Place the ASIS points: Mark two points on the front-side edges of the bucket, slightly below the rim. These are your front hip landmarks.
- Add the iliac crest: Draw the curved ridge from each ASIS up and around to the back of the bucket, following the top rim.
- Mark the sacrum: On the back of the bucket, place a small triangle between the two iliac wings, angled forward at the top.
- Define the pubic symphysis: At the bottom-front of the bucket, mark where the two pubic bones meet. This point, combined with the two ASIS marks, gives you the front triangle of the pelvis.
- Refine the shape: The iliac wings flare outward like butterfly wings when seen from the front. The sides of the pelvis scoop inward below the iliac crest before flaring out again at the hip sockets. Add these contours to move from a geometric bucket toward a more anatomical shape.
Practice this sequence from reference photos, rotating the pelvis to different angles each time. Start with front, side, and three-quarter views before tackling extreme foreshortening. Once the bucket method feels natural, try drawing directly from skeletal reference images or anatomical models, and you’ll find the landmarks snap into place much faster than if you’d tried to copy the bone shapes without the simplified form underneath.