Kemikte enfeksiyon yok.

Kemikte comes from kemik (bone) + the locative suffix -te, which means in / on / at.

So:

• kemik = bone
• kemikte = in the bone

In this sentence, it means in the bone.

This is because of two sound rules in Turkish:

• Vowel harmony decides between -da / -de
• Consonant harmony decides between d / t

For kemik:

• the last vowel is i, a front vowel, so the suffix uses e
• the word ends in k, which is voiceless, so d becomes t

That gives:

• kemik + de -> kemikte

So -te is the correct locative ending here.

Yok means there is not / there isn't / absent.

It is commonly used to say that something does not exist or is not present.

So:

• enfeksiyon yok = there is no infection
• kemikte enfeksiyon yok = there is no infection in the bone

Turkish often expresses existence with the pair:

• var = there is / there are
• yok = there is not / there are not

This is very natural Turkish. Instead of saying something like infection does not exist, Turkish usually just uses var/yok.

So this sentence is literally close to:

• In the bone, infection is absent.

That is why yok sounds normal here.

Because değil and yok do different jobs.

• değil negates identity or description
  
  • Bu enfeksiyonlu değil. = This is not infected.
• yok negates existence or presence
  
  • Enfeksiyon yok. = There is no infection.

Here the meaning is that infection is not present, so yok is the right choice.

Turkish often leaves out an explicit verb in simple present-tense nominal sentences.

In English, you need something like:

• There is no infection...

In Turkish, yok already carries that existential meaning, so no separate verb like is is needed.

That is completely normal.

Turkish does not use articles the same way English does.

• There is no word exactly like English the
• bir can mean a / one, but it is not always used

In a sentence like this, the bare noun enfeksiyon sounds natural and general:

• enfeksiyon yok = there is no infection

Using bir enfeksiyon yok would usually not sound right here.

Turkish word order is flexible, but this order is very natural.

A good way to understand it is:

• Kemikte = location/topic
• enfeksiyon = the thing being discussed
• yok = not present

So the sentence is structured like:

• In the bone, infection is absent.

This kind of location-first order is especially common in factual or medical style.

Yes, but the emphasis changes.

For example:

• Kemikte enfeksiyon yok. = neutral, natural
• Enfeksiyon kemikte yok. = more contrastive, like The infection is not in the bone
• Yok usually comes at the end in normal sentences

So the original version is the most straightforward way to say it.

Good question. These forms are different:

• kemikte = in the bone
• kemiğinde = in his/her bone or in its bone

The form kemiğinde includes a possessive element. It is more specific.

The sentence Kemikte enfeksiyon yok sounds more general, report-like, or anatomical. In medical Turkish, that is very common.

A simple pronunciation guide:

• Kemikte -> keh-MEEK-teh
• enfeksiyon -> en-fek-see-YON
• yok -> yok

A rough full pronunciation:

• keh-MEEK-teh en-fek-see-YON yok

A few useful notes:

• e is usually like e in bet
• i is like ee in see
• o is like o in off or a short o
• Turkish pronunciation is usually very regular and close to spelling