問診について
― IPSS・OABSSで症状を「見える化」します
前立腺肥大症の診断で最も大切なのが問診です。
当院では、症状を正確に把握するために IPSS と OABSS という質問票を用いて評価します。
どちらも 患者さんご自身が答える簡単なアンケート形式で、
痛みや負担は一切ありません。
IPSS（国際前立腺症状スコア）とは？
IPSS は、前立腺肥大症による排尿症状を評価する世界共通の質問票です。
評価する内容
過去1か月間の排尿の状態について、次のような項目を点数化します。
- 尿の勢いが弱い
- 排尿に時間がかかる
- 途中で尿が途切れる
- 尿が残っている感じがする
- トイレが近い
- 夜中に何度トイレに起きるか
さらに、
- 現在の排尿状態にどれくらい困っているか（QOL）
も一緒に評価します。
👉 症状の強さを数値で客観的に把握できるため、
治療前後の変化を比べるのにも非常に役立ちます。
OABSS（過活動膀胱症状スコア）とは？
OABSS は、主に 頻尿や尿意切迫感 など、
「膀胱の過敏さ」に関する症状を評価する質問票です。
評価する内容
- 日中にトイレへ行く回数
- 夜中にトイレへ起きる回数
- 急に強い尿意を感じることがあるか
- 我慢できずに漏れてしまうことがあるか
👉 前立腺肥大症の患者さんでも、
膀胱の症状（過活動膀胱）を合併しているケースが多く、
治療薬の選択を考えるうえで重要な指標になります。
なぜIPSS・OABSSが大切なの？
- 医師の感覚だけでなく、患者さんの困りごとを正確に反映できる
- 症状のタイプ（尿の出にくさ／頻尿・切迫感）を整理できる
- 薬の選択や治療方針を決める重要な材料になる
- 治療後の改善度が分かりやすい
👉 「なんとなく困っている」を
数字として整理できるのが、IPSS・OABSSの最大のメリットです。
まとめ
前立腺肥大症の問診では、
- IPSS：尿の出にくさ・排尿全体の評価
- OABSS：頻尿・尿意切迫感など膀胱症状の評価
を行うことで、
あなたに合った治療を選ぶための大切な情報が得られます。
「検査」と聞くと身構えてしまう方もいますが、
質問に答えるだけの簡単なステップですので、
安心してご相談ください。
Medical Interview
Visualizing Your Symptoms with IPSS and OABSS
The most important step in diagnosing benign prostatic hyperplasia (BPH) is a careful medical interview.
At Kato Prostate Clinic Tokyo and
Kato Kidney & Urology Clinic Hiratsuka,
we use two internationally recognized questionnaires—IPSS and OABSS—to accurately understand your urinary symptoms.
Both questionnaires are simple self-administered surveys.
They involve no pain, no procedures, and no physical burden.
What Is IPSS (International Prostate Symptom Score)?
IPSS is a worldwide standard questionnaire used to evaluate urinary symptoms caused by benign prostatic hyperplasia.
What does IPSS evaluate?
Based on your urinary condition over the past month, the following symptoms are scored:
-
Weak urine stream
-
Taking a long time to urinate
-
Intermittent urination (starting and stopping)
-
A feeling that urine remains after voiding
-
Frequent urination
-
How many times you wake up at night to urinate
In addition, IPSS also evaluates:
-
How much your current urinary condition affects your quality of life (QOL)
👉 Because symptoms are converted into numerical scores,
IPSS is extremely useful for objectively comparing symptoms before and after treatment.
What Is OABSS (Overactive Bladder Symptom Score)?
OABSS is a questionnaire that mainly evaluates symptoms related to bladder overactivity, such as:
-
Frequent urination
-
Sudden, strong urgency to urinate
What does OABSS evaluate?
-
Number of daytime urinations
-
Number of nighttime urinations
-
Whether you experience sudden, strong urges to urinate
-
Whether urine leakage occurs due to urgency
👉 Even in patients with benign prostatic hyperplasia,
overactive bladder symptoms are very common,
and OABSS is an important indicator when selecting appropriate medications and treatment strategies.
Why Are IPSS and OABSS Important?
-
They reflect the patient’s actual discomfort, not just the doctor’s impression
-
They help classify symptom types
(difficulty urinating vs. frequency and urgency) -
They are essential for determining treatment options
-
Treatment effectiveness is easy to understand after therapy
👉 The greatest advantage of IPSS and OABSS is that they turn
“vague urinary problems” into clear, objective numbers.
Summary
During the medical interview for benign prostatic hyperplasia:
-
IPSS evaluates difficulty urinating and overall urinary symptoms
-
OABSS evaluates bladder-related symptoms such as frequency and urgency
By using both questionnaires, we can gather important information to choose
the most suitable treatment for each individual patient.
Although the word “examination” may sound intimidating,
this step simply involves answering a few questions.
Please feel free to consult us with confidence.
Clinic Information & Access
📍 Kato Prostate Clinic Tokyo
Specialized in benign prostatic hyperplasia and male urinary symptoms
Conveniently located near Tokyo Station, making it easily accessible for both domestic and international patients.
📍 Kato Kidney & Urology Clinic Hiratsuka
Providing comprehensive urological care for the local community
Located in Hiratsuka City, Kanagawa Prefecture, serving patients of all ages with urinary and kidney-related conditions.
If you are experiencing urinary symptoms such as difficulty urinating, frequent urination, or nighttime urination,
please do not hesitate to contact or visit one of our clinics.
Early consultation can lead to earlier relief and better quality of life.