A hard lump on a girl’s lower body may be folliculitis, chancre, etc. Some of the hard lumps may heal on their own, so it is recommended not to wait for them to heal on their own, and to seek medical attention in time. 1. Folliculitis: a purulent infection of the hair follicle, the affected area may appear red, swollen, hot, painful hard bumps, some folliculitis can be broken, pus out of the self-healing. If the symptoms are serious, it is recommended to seek medical advice and give topical erythromycin and mupirocin ointment for treatment. 2. hard chancre: girls lower body grew a hard lump can not rule out the possibility of hard chancre, is a syphilis infection caused by a kind of skin and mucous membrane damage, often occurs in the genitals near. It is a disc-shaped ulcer that is classified as round or round, and is hard to touch, but not painful. It is recommended to consult a doctor in time to clarify the diagnosis and carry out anti-infection treatment. Women with hard bumps on the lower body need to seek timely medical attention, not to wait for it to heal and delay the condition.