Health encyclopaedia - Alphabetical Topic List健康百科全书-按字母顺序排列的主题清单

| A | | 1 | | B | | b | | C | | 人才招聘 | | D | | | | E | | 电子 | | F | | f | | G | | 克 | | H | | h | | I | | 我 | | J | | j | | K | | k | | L | | 升 | | M | | 米 |
| N | | n | | O | | o | | P | | p | | Q | |常见问题 | | R | | 研究 | | S | | | | T | | 吨 | | U | | u | | V | | v | | W | | 瓦特 | | X | | x | | Y | | y |

Why is it necessary?为什么要呢？ of Urinary catheterization对导尿

Blockages to the outflow of urine is not uncommon.淤塞，以流出的尿液是并不罕见。 This is especially true in men as urine has to flow through the prostate gland.  Enlarged prostate glands are quite common in older men.这是尤其是在男性尿液已流经前列腺。扩大会议前列腺腺体是相当常见的老年男子。