Men have seven major openings, or orifices, in the body: two nostrils, one mouth, two ear canals, one urethral opening at the tip of the penis, and one anus. If you count smaller functional openings like tear ducts, the number climbs higher. The exact total depends on how you define “hole,” which is why this seemingly simple question has a surprisingly layered answer.
The Seven Major Orifices
Starting from the head and working down, here are the primary openings in the male body:
- Two nostrils: Entry points for air into the nasal passages and respiratory system.
- One mouth: The opening to both the digestive and respiratory tracts.
- Two ear canals: Passages leading to the eardrums, one on each side of the head.
- One urethral opening: Located at the tip of the penis, this is the exit point for both urine and semen. The male urethra is about 20 cm (7 to 8 inches) long, running from the bladder through the full length of the penis.
- One anus: The terminal opening of the digestive tract.
These seven openings are the ones most anatomists count when discussing human orifices. They’re all large enough to see without magnification and serve obvious biological functions like breathing, eating, hearing, urination, reproduction, and waste elimination.
Smaller Openings That Raise the Count
Beyond the big seven, the body has several smaller but still functional openings. The most notable are the lacrimal puncta, tiny holes in the inner corners of your eyelids that drain tears into the nasal cavity. Each eye has two puncta (one on the upper lid, one on the lower lid), adding four openings to the count. The lower punctum tends to be slightly larger than the upper one.
Then there are sweat pores and hair follicles, which technically open to the body’s surface. The average person has roughly two to four million sweat glands alone. Most people don’t count these because they’re microscopic and only allow outward flow, but they are, strictly speaking, holes.
Male nipples also have a small number of undeveloped duct openings. While males have rudimentary milk ducts from fetal development, these ducts are undeveloped and nonfunctional. Whether they count as true openings is debatable.
How Men and Women Differ
The main difference comes down to one opening. Women have eight major orifices because the urinary and reproductive tracts exit through separate openings: the urethral opening and the vaginal opening. In men, the urethra serves double duty, carrying both urine and semen through a single exit point at the tip of the penis. So men have one fewer major orifice than women.
The Topology Angle
This question sometimes comes up in a mathematical context. In topology, a branch of math that studies shapes, a “hole” means something different. It refers to a passage that goes completely through the body, like a tunnel. From this perspective, the simplest answer is that humans are essentially a tube: food goes in one end, waste comes out the other. That gives you a single through-hole.
But the body isn’t really a simple tube. Your nostrils connect to your throat, which connects to your digestive tract, creating additional through-paths. Your ear canals connect to the throat via the Eustachian tubes. Even the tear ducts drain into the nasal cavity, which is why some people can blow air or milk through their eyes as a party trick. When you count all these connected passages, topologists have estimated the human body has a genus (the mathematical term for through-hole count) of somewhere between five and seven, depending on which internal connections you consider truly open.
For a straightforward anatomical answer, though, seven is the number most people are looking for. It covers every visible, functional opening in the male body without diving into microscopic pores or mathematical abstractions.