There is a small bag on the front tendon of the glans, which may be caused by glansitis, genital herpes, condyloma acuminatum and other diseases. 1. glans: glans is the inflammation of the mucosa of the glans, its main manifestation is the redness and swelling of the foreskin, burning pain, such as turning the foreskin, the glans can be seen congestion, swelling, and in severe cases, there may be small shallow ulcers, blisters, vesicles, and so on, the glans has a small packet of the anterior tendon of the glans may be caused by glans. 2. genital herpes: genital herpes is caused by herpes simplex virus infection of urogenital and perianal skin and mucous membranes, is a common sexually transmitted disease, the patient may appear around the genital blisters, vesicles, ulcers, and accompanied by itching, burning sensation and pain and other symptoms. 3. acromegaly: acromegaly is a sexually transmitted disease caused by human papillomavirus infection, common clinical skin lesions have papules, plaques, papillae or cauliflower pattern superfluous organisms, men are more common in the glans, the coronal groove, the prepuce tie, urethral orifice, penile parts, glans anterior tendon on the small package may be caused by acromegaly. It is recommended that the patient timely medical examination, clear cause for targeted treatment, in life, pay attention to personal hygiene, keep the private part of the local clean, dry, try to avoid unclean sex, but also pay attention to monitor the condition, timely review.