Ten Common Belly Button Shapes and What Makes Each One Different

A belly button is the scar left where the umbilical cord was attached, and no two look exactly alike. Its shape depends on how the area healed after birth and on the body’s natural build. The ten shapes below are among the most common, with a short explanation of what each one looks like.

The Innie

The innie is the most common shape. The navel sits inside a small hollow, with the skin curving inward toward the center. Depth can differ a lot from one person to the next, from a light dip to a clear pocket.

Because the area is recessed, it can collect lint and moisture more easily than other shapes. A gentle wash during a normal shower and a thorough dry afterward are usually enough to keep it clean.

The Outie

An outie pushes outward instead of dipping in, so the center of the navel sits level with or slightly above the surrounding skin. It forms in a small share of people and is mostly a matter of how the skin and tissue settled after the cord stump fell away.

In most cases an outie is harmless. If a bulge appears later in life, grows larger or becomes painful, it is worth asking a doctor, since that can point to an umbilical hernia.

Vertical Belly Button

A vertical navel is longer from top to bottom than from side to side, like a narrow slit standing upright. This shape is common and often looks neat and slim.

The body’s build plays a part in how this shape appears. Weight changes, pregnancy and posture can all stretch or soften the line over time, so a vertical navel may look a little different from year to year.

Horizontal Belly Button

A horizontal navel is the opposite, wider from side to side than it is tall. It often looks like a gentle curved line or a flat oval lying on its side.

This shape can develop when the skin around the navel pulls sideways, for example after weight gain, pregnancy or abdominal surgery. In many people it simply forms that way from birth.

Round Belly Button

A round navel looks like a small circle, with an even rim all the way around. The edges are usually smooth, and the hollow in the center is shallow to medium in depth.

It is one of the shapes people often describe as classic. The symmetry makes it easy to recognize, and it tends to keep its form well as the body changes.

Oval Belly Button

An oval navel sits between round and vertical. It has a soft elongated shape, rounded at both ends, and it can lie upright or slightly tilted.

The shape is common and looks natural on most body types. Small changes in the surrounding skin can make an oval appear a little rounder or a little narrower over time.

T-Shaped Belly Button

A T-shaped navel has a vertical line with a horizontal line across the top, which together form the letter. It happens when the skin folds in a way that creates two crossing creases.

This shape is less common than the innie or outie. It is a normal variation, and the look usually comes from how the skin healed in the early weeks after birth.

Diamond or Hooded Belly Button

A hooded navel has a small fold of skin overhanging the top edge, which partly covers the opening like a hood. Some of these also have a diamond-like outline where the creases meet at four points.

The fold can make the navel look deeper than it is. Cleaning matters here, since moisture can stay trapped under the skin overhang, so lifting it gently during washing and drying keeps the area fresh.

Shallow or Flat Belly Button

A shallow navel barely dips into the skin, and a flat one almost blends in with the stomach. The edges are soft and the center may only be marked by a thin line or a faint circle.

It is a normal shape and often simply reflects the way the skin and the tissue underneath settled. Some people find it easier to keep clean, because there is very little hollow to collect dirt.

Deep Belly Button

A deep navel has a pronounced hollow, and the opening may narrow as it goes inward. The skin around it often folds toward the center, which makes it look like a small pocket.

Depth can change with body weight and posture, and this shape needs careful cleaning, as lint and moisture can settle in the hollow. A cotton swab dipped in a mild cleanser can reach inside, and the area should be dried afterward.

A belly button shape cannot be chosen, and every one on this list is a normal variation. If you notice a sudden bulge, pain, redness, a bad smell or discharge, it is sensible to have a doctor look at it. Keeping the area clean and dry is the one habit that suits every shape.