Dr. Manhattan is ( a character made entirely out of CGI ) is shown nude a few times. His butt and genitals ( which are very hard to make out ) can be seen if you look hard enough.
A women's breasts are shown briefly
An older is brutally beaten by getting punched, thrown across the room, glass table and having his head smashed against the table counter. He is then thrown through the window and dies.
A man gets his arms sawn off off-screen. Blood sprays on a wall.
There is a fight in an alley. You see a compound fracture where an elbow pops out as blood sprays, and one other arm and leg snapping/breaking. Another attacker is stabbed in the neck (though with little blood). One of them is used as a human shield and is shot in the back with spurting wounds.
A woman is shot in the leg and blood spurts out, and then her fingers are blown off. Another man is then shot between the eyes.
A man hacks another man's head with a cleaver. Matter is shown briefly.
Dr. Manhattan literally blows people up. In one scene he blows several thugs up and their blood, guts, and bones are seen on the ceiling, but is very dark. On some others their bones, guts, and blood are briefly seen.
Rorschach is disintegrated by Dr. Manhattan and there is a gory mess seen on the ground.
Two young men tease a boy about his mother and make crude sexual remarks, the boy becomes enraged, strikes one young man with a hammer, and tackles the other and bites his face (we see the boy's bloody mouth, with skin in his teeth).
Dogs are shown fighting over a dead girls leg.
A man attempts to rape a woman. He is interrupted and punched a few times, with a little blood seen on his nose.
Rorschach corners a man in a bathroom and kills him offscreen. The only thing heard is a toilet flushing. As he walks away, blood pours briefly from under the door.
People's fingers are broken or dislocated as a form of torture. The fingers aren't seen and if they are it is very brief, but you hear them cracking and you see the people screaming/yelling.
A total of three men are seen briefly on fire.
A man gets hot oil poured on his face.
A man's head is slammed into a sink and he falls to the ground, lying still. Water from the sink flows to a damaged electrical cord the man is near and he is briefly electrocuted.
A man shoots at rioters with rubber bullets and launches tear gas at them from a grenade launcher.
A man shoots a pregnant woman, killing her (no visible blood).
New York City is destroyed by a weapon of mass destruction, although we do not see anything particularly graphic.
A man gets shot by a grappling hook, but his bulletproof vests stops it and he is merely thrown back against the wall.
In a flashback, a woman is seen briefly beating her son when her son see her having sex
A man is shown getting punched in the face. Afterwards, blood and separated teeth are shown accumulating in his mouth.
Hollis Mason gets into a fist fight with several guys. He is then beaten to death in the head/face with a trophy offscreen.
26 instances of 'fuck', 7 of 'shit', 3 of 'son of a bitch', 6 of 'whore', 2 of 'dick', 1 of 'asshole', 1 whispered use of ass, 3 uses of bastard.
When the Comedian appears on-screen, he is often seen smoking a large cigar or drinking.
A few other characters also smoke and drink sometimes.
The violence can be very intense and disturbing at times. Notable examples include the arm sawing, the opening beatdown, the alley fight, the secretary shooting, the finger-breakings, the hot-oil scene, etc.
The death of Roarsach can be intense.
The Director's Cut also has some intense scenes, particularly the face-punching.