When it occurs in breastfeeding mothers, it is known as puerperal<unk> , lactation<unk> , or lactational<unk> . When it occurs in non breastfeeding women it is known as non-puerperal or nonlactational.<unk>  can, in rare cases, occur in men. Inflammatory breast cancer has symptoms very similar to<unk>  and must be ruled out. The symptoms are similar for puerperal and nonpuerperal<unk>  but predisposing factors and treatment can be very different. Pregnancy related An ultrasound image of puerperal<unk>  Puerperal<unk>  is the inflammation of the breast in connection with pregnancy, breastfeeding or weaning. Since one of the most prominent symptoms is tension and engorgement of the breast, it is thought to be caused by blocked milk ducts or milk excess. It is relatively common; estimates range depending on methodology between 5–33%. However, only about 0.4–0.5% of breastfeeding mothers develop an abscess. Some predisposing factors are known but their predictive value is minimal. It appears that proper breastfeeding technique, frequent breastfeeding and avoidance of stress are the most important factors that can be influenced. Light cases of<unk>  are often called breast engorgement; the distinction is overlapping and possibly arbitrary or subject to regional variations. Non pregnancy related The term nonpuerperal<unk>  describes inflammatory lesions of the breast occurring unrelated to pregnancy and breastfeeding. This article includes description of<unk>  as well as various kinds of mammary abscesses. Skin related conditions like dermatitis and foliculitis are a separate entity. Names for non-puerperal<unk>  are not used very consistently and include<unk> , subareolar abscess, duct ectasia, periductal inflammation, Zuska's disease and others. Periductal<unk>  is a form of nonlactational<unk> , and is characterized by inflammation of the subareolar ducts. Although the cause of periductal<unk>  is currently unknown, it is predicted that smoking may be related. This condition is mainly seen in young women but can also be seen in men.
Mastitis
Breast cancer
Amurca
Breast engorgement
Pyometra
Hidradenoma
Trichodiscoma
Hydrocolpos