Chapter 594 The cause of corpse waxing

"It should be, but it's not complete. It's just that some parts have become waxy."

Chen Yan frowned. After solving so many cases, Chen Yan had seen many types of corpses, but Chen Yan had never encountered a corpse that had been transformed into wax.

Taking a few steps forward, Chen Yan lifted up the white cloth covering the body... It turned out to be wax!

Chen Yan had learned about this kind of corpse transformation when he was in college, but he only briefly mentioned it without introducing it in too much detail.

But Chen Yan has obtained the autopsy skill specialization rewarded by the system, so now he is very familiar with the situation of corpse waxing.

Waxing of corpses is a manifestation of late changes in corpses.

The body will change rapidly after a person dies. The period from death to 24 hours after death is generally considered to be the early changes of the body, and the period after that is the beginning of the late changes of the body.

There are many ways to classify the late changes of corpses, but they can be roughly divided into two categories, one is damaged corpses and the other is preserved corpses.

There are two types of changes in damaged corpses, one is that the deceased suffered trauma leading to death before death, and the other is that the deceased's body was damaged after death.

Preservative corpse changes refer to the natural changes in the corpse due to the influence of environmental factors after death.

In particular, the temperature, humidity, oxygen content of the surrounding environment and the degree of ventilation will play a decisive role in the later changes of the corpse.

For example, Chen Yan has seen giant scenes before. After the corpse is highly decomposed, the interior is filled with gas, causing the corpse to swell, have bulging eyes, everted lips, bulging skin, etc.

Another type is osmosis, where only the bones are left after all the flesh, flesh, skin, etc. of the corpse are decomposed.

The most common one is actually the skeletal corpse. After the corpse is putrefied, the organic matter is decomposed, and only the bones are left.

Many people have misunderstandings about the white bones of corpses, thinking that it will take a long time for corpses to turn into white bones. In fact, this is not necessarily the case.

Rapid corpse skeletalization can be completed within a month.

The speed of skeletalization of corpses mainly depends on the environment in which the corpse is located. The time period for skeletalization of corpses buried underground is generally longer, and the final skeletalization may not even occur due to some special reasons.

However, if it is exposed to the outdoors, especially if it is exposed to direct sunlight and the surrounding temperature and humidity are suitable, the rate of ossification will be very fast, and ossification will occur in as little as one month.

In addition to skeletal corpses, if the surrounding environment is particularly dry and the temperature is very high, mummies will also form if the water evaporates quickly before the corpse decays. This situation is more likely to be seen in desert areas.

Another common one is frozen corpses. In extremely cold areas, the corpses are completely frozen after death and will not undergo any changes. The skin color of some corpses will not even change significantly, and they will basically remain the same as they were during life.

And as long as it doesn't thaw, this situation will continue.

In addition to these slightly more common late-stage final states of corpses, there is another corpse in front of Chen Yan that is partially waxed.

The so-called waxed corpse means that part or all of the surface of the corpse is covered with a layer of oily wax-like substance, and the whole corpse seems to be sealed with wax.

This corpse state is very rare because the cause of its formation is quite severe.

After the human body dies, if the outside temperature is suitable, a putrefactive reaction will immediately occur inside the body.

However, if the oxygen concentration is in an environment with very low oxygen concentration, the putrefaction reaction cannot continue, because the putrefaction reactions of many fungi are aerobic reactions. Once oxygen is lacking, it will be difficult for this reaction to continue.

In some relatively closed environments, the putrefaction reaction stops, but the subcutaneous fat of the corpse can be deoxygenated and dissolved, and then slowly seep out from the pores of the skin, forming a substance similar to oil and wax on the surface of the corpse.

Eventually, corpse waxing is formed.

However, not all corpses in the water can be waxed. The most important thing is that the space is relatively airtight.

This is why corpses in the river will not wax, because the flowing river water still contains oxygen, and the microorganisms in the water will also act on the corpse.

Coupled with the eating of fish in the water, the body will eventually decompose.

However, if the body is in mud or swamp, the probability of waxing is relatively high.

As for the corpse at the scene, because it was in a sealed water tank, it had no access to oxygen, and the space was airtight. Only with enough time did the current corpse waxing phenomenon occur.

"How is the survey going around?"

Wu Zhiguo shook his head: "This is an open-air rooftop. Based on the current state of the body, it is preliminary estimated that the time of death is at least three months. For such a long time, it has been exposed to wind and rain, and there are no traces left."

"The only clue is the broken lock, but there are no fingerprints on it."

Chen Yan nodded and uncovered the entire white cloth covering the body.

Since there are no clues at the scene, we can only look for clues from the corpse.

As Wu Zhiguo said, there is a general rule in the formation time of waxed corpses, but this rule is not a qualitative rule but a statistical rule.

There are many murders every year throughout China, but the corpses have become waxy and have not been seen in several years.

Judging from the statistical analysis of waxy corpses discovered over the years, the shortest time for corpses to become waxy is three months, and within three months, waxing will generally occur in individual parts of the corpse.

It takes one to one and a half years for the corpse to fully wax.

Of course, this is just the average time. If the environmental factors of the corpse are suitable, it is possible for the corpse to wax in a shorter time. If it is not suitable, it may take longer for the corpse to wax.

The corpse found this time had waxing only on the chest and abdomen. The head was partially waxed, but not completely. The thighs were partially waxed, but not the other limbs.

In fact, there is no particularly scientific explanation for the specific cause of corpse waxing. What is currently known is that corpses may form corpse waxing in a hypoxic and closed environment, especially in sealed water. The probability of corpse waxing is

Bigger.

It is also related to the thickness of the deceased's fat, because corpse wax itself is a substance that penetrates from the body surface after the fat melts. If there is too little fat, it is naturally impossible to form corpse wax.

The deceased's age was initially judged to be around 30 years old. She was a female, and judging from her body shape, she was relatively plump.

Due to the lack of oxygen in the water, his appearance remained about 70% similar to that of his life, except that the corpse wax on his neck looked greasy and a little disgusting.

If one were to rank the disgusting and terrifying degree of late-stage corpse phenomenon, Chen Yan believed that the waxing of corpses would definitely rank ahead of the view of giants.

Apart from the extremely rare corpse tanning, the horror of corpse waxing should be second.

The body had the most fat in its abdomen and chest, and the body was most severely waxed. The entire chest and abdomen seemed to be wrapped in oily wax, crystal clear. Several detectives nearby only took one look at it before squatting in the distance and vomiting.

Even Chen Yan frowned, but this kind of corpse didn't smell like corpse, and his nose was at least a little better.

Putting on gloves, Chen Yan gently lifted the arm of the corpse. After just observing for a moment, Chen Yan discovered some clues.
Chapter completed!