Hamne padha wadi ek pak chez hai, iski kya pehchan hai? Isme aur urine me kya fark kiya ja sakta hai? Aksar kafi sahi se istebra karne ke baad bhi kuch mehsus hota hai, hamne padha hai ki is halat me use pak samjh sakte hain lekin kya koi tarika hai kya jisse pata chal jaye ki ye wadi hai?