卯辰害

mǎo chén hài · Mao-Chen Harm

卯辰害 is one of the six harms, or 六害, of Chinese terrestrial-branch analysis, in which the branches 卯 and 辰 are said to stand in a relation of covert mutual injury.

Deep Oracle Practitioner Desk · 2026-09-19 · 7 min read

取义

In the traditional understanding of the twelve earthly branches, 卯 is the branch associated with the Wood element in its flourishing stage. 辰, by contrast, is a season-ending earth-branch in which the Wood qi has passed its peak and the Earth qi it stores is described as weak or declining. The harm between 卯 and 辰 is therefore explained as a case of strong Wood pressing upon and encroaching on weakened Earth. The wood qi of 卯 is described as being at its height, while the earth qi lodged within 辰 is said to be in a state of enfeeblement or near-death. When these two branches meet, the prosperous Wood of 卯 dominates and suppresses the failing Earth of 辰.

This configuration is named in the classical text 三命通会 in its discussion of the six harms. There, the 卯辰 relation is characterized as 以少凌长, meaning that the younger or lesser overcomes the older or greater. The phrase conveys an inversion of expected hierarchy: the smaller or more aggressive element is able to impose itself upon the larger or more senior element because of the latter’s weakened condition. The harm, then, is not a symmetrical clash but an unequal pressure, in which 卯 takes advantage of 辰’s depleted state.

由冲合而生

The six harms are not treated in traditional theory as an independent structural layer parallel to the six clashes and six combinations. Instead, they are understood as a byproduct of the interaction between clash and combination relationships. The case of 卯辰害 is explained through the clash between 卯 and 酉 and the combination between 辰 and 酉.

卯 stands in direct opposition, or clash, with 酉. In this framework, 卯 is said to fear the arrival of 酉 because the clash would destabilize it. 辰, however, forms a combination with 酉. When 辰 combines with 酉, it is said to draw 酉 away, removing the branch that 卯 regards as a threat. This act of drawing away the opposing branch is not a neutral event. Because 辰 intervenes in the opposition between 卯 and 酉 and binds 酉 to itself, the result is that 卯 turns its animosity toward 辰. The harm arises from this redirected tension: 卯 is no longer faced with 酉, but with the branch that has absorbed or neutralized 酉 through combination.

Thus the six harms, including 卯辰害, are described as derivative patterns. They emerge from the way clash and combination relations overlap within a chart. They do not possess the same foundational status as the direct clash of two branches or the direct combination of two branches. In the case of 卯 and 辰, the harm is the residue of a triangular interaction involving 酉, in which 卯’s original conflict is displaced onto 辰.

位置与轻重

The classical discussion in 三命通会 assigns differing degrees of importance to harms depending on where they appear among the four pillars. The text states that a harm occurring between the day pillar and the hour pillar is the most significant placement. When the day branch and hour branch form a harm, the relationship is treated as particularly relevant to the person’s later circumstances and immediate environment, because the hour pillar is associated with the later part of life and with outward affairs.

The text further states that harms involving the body and life palace are secondary in importance. The body palace and life palace are auxiliary positions used in traditional chart analysis, and a harm appearing there is noted but given less weight than one involving the day and hour pillars. The ranking implies that the harm is not uniformly serious wherever it appears; its interpretive force depends on the structural location of the two branches.

More broadly, the six harms are generally regarded as weaker in influence than clashes and combinations. In traditional practice, a clash or a combination is treated as a more direct and forceful event, while a harm is understood as a subtler form of friction. The harm often indicates hidden discord, quiet resentment, or difficulty that does not necessarily manifest as open conflict. Because of this, the six harms serve as a supplementary reference in chart reading. They are not used independently as the main basis for judging fortune or misfortune. Their role is to qualify or add nuance to an analysis already grounded in stronger structural relations.

The harm between 卯 and 辰 is therefore treated as a background condition. It may suggest an undercurrent of strain, particularly where the Wood and Earth dynamic described in the 取义 section is relevant, but it does not by itself determine major outcomes.

命例

One chart generated for reference purposes has the following four pillars: 壬寅 for the year, 壬寅 for the month, 癸卯 for the day, and 丙辰 for the hour. The pattern identified in this chart is 伤官格. In this configuration, the 卯 branch appears in the day pillar and the 辰 branch appears in the hour pillar. The 卯辰害 relation therefore falls on the day and hour pillars.

Because the classical text treats a harm between the day and hour pillars as the most significant placement, this placement would draw attention in a traditional reading. The day branch 卯 and the hour branch 辰 stand in the harm relation described above: the strong Wood of 卯 is said to press upon the weakened Earth of 辰. At the same time, the harm is understood as a secondary factor relative to the chart’s broader pattern and to any clashes or combinations that may be present. Its presence here would be noted as a subtle indicator of friction rather than as the primary determinant of the chart’s meaning.

Worked example (solar 1962-03-06 7:00, female, computed by this site's engine):

YearMonthDayHour
Stems壬 (劫财)壬 (劫财)癸 (DM)丙 (正财)
Branches

Pattern: 伤官格 · Strength: 偏弱 (engine verdicts)

常见误区

A common misunderstanding is to treat the six harms as an independent system equal in rank to the six clashes and six combinations. The classical framework does not support this. The harms arise from the overlap of clash and combination relationships, and their interpretive weight is lower. To read 卯辰害 as a direct and forceful opposition comparable to a clash would overstate its role.

Another misunderstanding is to assume that the harm between 卯 and 辰 means the two branches cannot coexist in a chart at all. In practice, the harm is a qualitative relation, not an absolute prohibition. It indicates tension or hidden discord, but its significance depends on the pillars involved, the strength of the elements, and the surrounding chart structure.

It is also mistaken to say that the harm is active whenever 卯 and 辰 appear anywhere in the four pillars without considering placement. The classical discussion prioritizes the day and hour pillars and gives less weight to other positions. If the two branches do not appear together in the original chart, the harm relation is not considered established until a later annual or cyclical period brings the missing branch. When a yearly or other time cycle supplies the absent branch, the harm may then form. Until that occurs, the relation remains latent rather than active.

Finally, the label 以少凌长 can be misread as a simple moral judgment about youth overcoming age. In this context, it is a technical description of elemental condition: the flourishing Wood of 卯 dominates the declining Earth of 辰. The phrase describes the relative strength of the two branches, not a social or ethical statement.

Classical sources cited

  • 三命通会·论六害

Lookup tables are generated from this site's chart engine; quotations are verified against the cited works.

Cast a BaZi chart

Enter a birth date and time to compute the full chart: four pillars, ten gods, stars, luck cycles and annual pillars.

Start now
Mao-Chen Harm: One of the Six Harms in Earthly Branches