**Title:** 85M with rectal bleeding (on blood thinners, CKD stage 4) — is colonoscopy safe?
**Age:** 85
**Sex:** Male
**Height:** ~5'6"
**Weight:** 49 kg
**Existing medical issues:** CKD stage 4, possible prostate enlargement/tumor
**Current medications:** Blood thinners (recently started), other routine meds
**Smoking/Drinking:** No
**Location:** India kolkata
**Main concern:**
My father (85M) has recently started having **significant rectal bleeding with clots**, sometimes even without stool. He also reports **lower abdominal pain, weakness, and occasional cramping**.
Doctors have recommended a **colonoscopy** to identify the source of bleeding (possible causes mentioned include polyps, diverticular bleeding, or malignancy).
**Concerns:**
* His **advanced age (85)**
* **CKD stage 4**
* Currently on **blood thinners**
* Weakness and overall frailty
I’m worried about:
* Risks of sedation during colonoscopy
* Safety of bowel preparation in CKD
* Bleeding risk due to anticoagulants
**Questions:**
How safe is colonoscopy in someone of this age and condition?
Are there safer diagnostic alternatives worth considering?
How are blood thinners typically managed before such a procedure?
What red flags should prompt urgent intervention vs waiting?
Any medical guidance would be greatly appreciated.