Many women are physically smaller and more delicately built than men and in general, we consider smaller, more delicate things more feminine. That’s why tattoos for women are generally smaller and prettier than male tattoos.
It is rare, though not unheard of, for a woman to have a full sleeve tattoo that covers much of her arm., but usually feminine tattoos are more likely to be isolated in one or two areas of the body – as accent pieces, so to speak.
Women’s tattoo designs are also less heavy, less aggressive looking compared to men's tattoos. They tend to have thinner lines, though this is, of course, a generalization rather than a rule.