Circumcision stapler is a medical device used for circumcision surgery, which has the characteristics of simple operation, short operation time, and less bleeding compared to traditional surgical methods. The applicable population is mainly defined based on medical indications and physiological needs. The following is a specific explanation: 1、 Applicable population with clear medical indications 1. Patients with phimosis Definition: Narrowing of the foreskin opening, unable to retract and expose the glans penis, may cause difficulty urinating, recurrent infections, or affect penis development. Necessity of surgery: Phimosis can easily cause balanitis and urinary tract infections, which may increase the risk of penile cancer in the long term. It may also affect sexual life or lead to gynecological diseases in spouses after marriage, and needs to be improved through circumcision. 2. Elderly with severe phimosis Definition: The foreskin covers the glans penis and urethral opening, but can be retracted. If the following conditions exist, surgery should be considered: Repeated occurrence of balanitis (due to accumulation of smegma causing bacterial growth); The elasticity of the foreskin opening is poor, and it is easy to form entrapment when turned up (the foreskin is located in the coronal sulcus, causing blood circulation disorders); Excessive foreskin can affect urination or hygiene (such as children with foreskin bulging during urination due to excessive foreskin). 3. Patients with complications Situation: Long foreskin or phimosis can cause other health problems, such as: Urethral meatus stenosis (narrowing of urine stream and shorter range during urination); Phimosis stones (long-term accumulation and calcification of smegma); Sexual dysfunction caused by foreskin problems (such as premature ejaculation, erectile pain, etc., which need to be evaluated by a doctor). 2、 Population based on physiological developmental needs 1. Childhood phimosis or foreskin overgrowth Judgment criteria: Children under 3 years old often have physiological phimosis, and if there are no abnormalities, surgery may not be performed temporarily; If there is still phimosis after the age of 6, or if the foreskin is too long and affects urination or recurrent infections, it is recommended to undergo surgery before school age (6-12 years old) to avoid affecting penis development and psychological cognition. 2. Adolescent males Factors to consider: During adolescence, the penis develops rapidly. If the foreskin is too long or phimosis prevents the penis head from being exposed, it may affect development. In addition, sexual arousal during puberty and improper cleaning can easily lead to infection. Surgery can be recommended by a doctor. 3、 Other applicable scenarios 1. Male before marriage or childbirth Purpose: To reduce the risk of gynecological inflammation in spouses due to foreskin problems after marriage, or for the sake of reproductive health (foreskin smegma may affect sperm quality). 2. Individuals with special occupational or life needs Example: People engaged in water work, high-risk industries (susceptible to infection due to foreskin problems), or those who need to undergo circumcision due to religious or cultural customs. 4、 Taboo populations and precautions 1. Population not recommended for use Patients in the acute infection phase: When there is acute inflammation or ulceration in the foreskin or glans penis, the infection should be controlled before surgery; Patients with coagulation disorders, such as hemophilia and thrombocytopenia, may experience prolonged bleeding during surgery; Patients with serious systemic diseases, such as those with uncontrolled heart disease and diabetes, need to assess the surgical tolerance; Mentally ill or unable to cooperate with surgery: Children need to undergo surgery under general anesthesia, and caution should be exercised if there are contraindications to anesthesia. 2. Timing of surgery It is recommended to perform pediatric surgery in spring and autumn to avoid wound infections caused by high temperatures in summer; Adult surgery should avoid periods of physical discomfort such as colds and fever, and anticoagulant drugs (such as aspirin) should be discontinued before surgery.